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1361349800 = 2352173671091
BaseRepresentation
bin101000100100100…
…1000110010101000
310111212121201211222
41101021020302220
510242001143200
6343030241212
745510165566
oct12111106250
93455551758
101361349800
116394a0288
1231bab6208
13189068435
14ccb30a36
157e7acd85
hex51248ca8

1361349800 has 96 divisors (see below), whose sum is σ = 3363534720. Its totient is φ = 510643200.

The previous prime is 1361349793. The next prime is 1361349833. The reversal of 1361349800 is 89431631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247255 + ... + 1248345.

It is an arithmetic number, because the mean of its divisors is an integer number (35036820).

Almost surely, 21361349800 is an apocalyptic number.

1361349800 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 1361349800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681767360).

1361349800 is an abundant number, since it is smaller than the sum of its proper divisors (2002184920).

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

1361349800 is a wasteful number, since it uses less digits than its factorization.

1361349800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 1361349800 is about 36896.4740862863. The cubic root of 1361349800 is about 1108.2980708751.

The spelling of 1361349800 in words is "one billion, three hundred sixty-one million, three hundred forty-nine thousand, eight hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 367 425 680 734 850 1091 1468 1700 1835 2182 2936 3400 3670 4364 5455 6239 7340 8728 9175 10910 12478 14680 18350 18547 21820 24956 27275 31195 36700 37094 43640 49912 54550 62390 73400 74188 92735 109100 124780 148376 155975 185470 218200 249560 311950 370940 400397 463675 623900 741880 800794 927350 1247800 1601588 1854700 2001985 3203176 3709400 4003970 6806749 8007940 10009925 13613498 16015880 20019850 27226996 34033745 40039700 54453992 68067490 80079400 136134980 170168725 272269960 340337450 680674900 1361349800