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13613202390 = 23512717919961
BaseRepresentation
bin11001010110110100…
…01111101111010110
31022010201122100000010
430223122033233112
5210334434434030
610130454101050
7661230211464
oct145332175726
938121570003
1013613202390
115856330497
12277b04a786
13138c440958
14931d8b834
1554a1cb6b0
hex32b68fbd6

13613202390 has 64 divisors (see below), whose sum is σ = 33114562560. Its totient is φ = 3581303040.

The previous prime is 13613202389. The next prime is 13613202413. The reversal of 13613202390 is 9320231631.

It is a super-2 number, since 2×136132023902 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672010 + ... + 691970.

It is an arithmetic number, because the mean of its divisors is an integer number (517415040).

Almost surely, 213613202390 is an apocalyptic number.

13613202390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13613202390 is an abundant number, since it is smaller than the sum of its proper divisors (19501360170).

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

13613202390 is a wasteful number, since it uses less digits than its factorization.

13613202390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20277.

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 13613202390 in words is "thirteen billion, six hundred thirteen million, two hundred two thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 127 179 254 358 381 537 635 762 895 1074 1270 1790 1905 2685 3810 5370 19961 22733 39922 45466 59883 68199 99805 113665 119766 136398 199610 227330 299415 340995 598830 681990 2535047 3573019 5070094 7146038 7605141 10719057 12675235 15210282 17865095 21438114 25350470 35730190 38025705 53595285 76051410 107190570 453773413 907546826 1361320239 2268867065 2722640478 4537734130 6806601195 13613202390