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1348880040 = 233453831087
BaseRepresentation
bin101000001100110…
…0100011010101000
310111000011012120000
41100121210122220
510230303130130
6341503103000
745266201604
oct12031443250
93430135500
101348880040
116324535a2
123178a1a60
131865c0691
14cb206504
157d648260
hex506646a8

1348880040 has 160 divisors (see below), whose sum is σ = 4549754880. Its totient is φ = 358432128.

The previous prime is 1348880003. The next prime is 1348880059. The reversal of 1348880040 is 400888431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1348879977 and 1348880004.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1240377 + ... + 1241463.

It is an arithmetic number, because the mean of its divisors is an integer number (28435968).

Almost surely, 21348880040 is an apocalyptic number.

1348880040 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 1348880040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274877440).

1348880040 is an abundant number, since it is smaller than the sum of its proper divisors (3200874840).

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

1348880040 is a wasteful number, since it uses less digits than its factorization.

1348880040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1348880040 is about 36727.1022543298. The cubic root of 1348880040 is about 1104.9037377839.

It can be divided in two parts, 13488 and 80040, that added together give a triangular number (93528 = T432).

The spelling of 1348880040 in words is "one billion, three hundred forty-eight million, eight hundred eighty thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 383 405 540 648 766 810 1080 1087 1149 1532 1620 1915 2174 2298 3064 3240 3261 3447 3830 4348 4596 5435 5745 6522 6894 7660 8696 9192 9783 10341 10870 11490 13044 13788 15320 16305 17235 19566 20682 21740 22980 26088 27576 29349 31023 32610 34470 39132 41364 43480 45960 48915 51705 58698 62046 65220 68940 78264 82728 88047 97830 103410 117396 124092 130440 137880 146745 155115 176094 195660 206820 234792 248184 293490 310230 352188 391320 413640 416321 440235 586980 620460 704376 832642 880470 1173960 1240920 1248963 1665284 1760940 2081605 2497926 3330568 3521880 3746889 4163210 4995852 6244815 7493778 8326420 9991704 11240667 12489630 14987556 16652840 18734445 22481334 24979260 29975112 33722001 37468890 44962668 49958520 56203335 67444002 74937780 89925336 112406670 134888004 149875560 168610005 224813340 269776008 337220010 449626680 674440020 1348880040