Search a number
-
+
1000310111200 = 255218112495531
BaseRepresentation
bin11101000111001110010…
…00001111101111100000
310112121222022221201002001
432203213020033233200
5112342113342024300
62043311445133344
7132161421440221
oct16434710175740
93477868851061
101000310111200
11356257a86044
12141a499ba254
13734375c69aa
14365b56cd248
151b048ac116a
hexe8e720fbe0

1000310111200 has 144 divisors (see below), whose sum is σ = 2457909090000. Its totient is φ = 397522944000.

The previous prime is 1000310111179. The next prime is 1000310111221. The reversal of 1000310111200 is 21110130001.

It is an interprime number because it is at equal distance from previous prime (1000310111179) and next prime (1000310111221).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180852435 + ... + 180857965.

It is an arithmetic number, because the mean of its divisors is an integer number (17068813125).

Almost surely, 21000310111200 is an apocalyptic number.

1000310111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000310111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228954545000).

1000310111200 is an abundant number, since it is smaller than the sum of its proper divisors (1457598978800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000310111200 is a wasteful number, since it uses less digits than its factorization.

1000310111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981 (or 6968 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1000310111200 its reverse (21110130001), we get a palindrome (1021420241201).

The spelling of 1000310111200 in words is "one trillion, three hundred ten million, one hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 181 200 362 400 724 800 905 1249 1448 1810 2498 2896 3620 4525 4996 5531 5792 6245 7240 9050 9992 11062 12490 14480 18100 19984 22124 24980 27655 28960 31225 36200 39968 44248 49960 55310 62450 72400 88496 99920 110620 124900 138275 144800 176992 199840 221240 226069 249800 276550 442480 452138 499600 553100 884960 904276 999200 1001111 1106200 1130345 1808552 2002222 2212400 2260690 3617104 4004444 4424800 4521380 5005555 5651725 6908219 7234208 8008888 9042760 10011110 11303450 13816438 16017776 18085520 20022220 22606900 25027775 27632876 32035552 34541095 36171040 40044440 45213800 50055550 55265752 69082190 80088880 90427600 100111100 110531504 138164380 160177760 172705475 180855200 200222200 221063008 276328760 345410950 400444400 552657520 690821900 800888800 1105315040 1250387639 1381643800 2500775278 2763287600 5001550556 5526575200 6251938195 10003101112 12503876390 20006202224 25007752780 31259690975 40012404448 50015505560 62519381950 100031011120 125038763900 200062022240 250077527800 500155055600 1000310111200