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31013300130 = 2352011514061
BaseRepresentation
bin11100111000100010…
…010110011110100010
32222001100222212211120
4130320202112132202
51002003401101010
622125230353110
72145352462431
oct347042263642
988040885746
1031013300130
111217522145a
12601635b796
132c032aac87
141702c59118
15c17a85e70
hex7388967a2

31013300130 has 32 divisors (see below), whose sum is σ = 74469077568. Its totient is φ = 8266084800.

The previous prime is 31013300083. The next prime is 31013300161. The reversal of 31013300130 is 3100331013.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196701 + ... + 317360.

It is an arithmetic number, because the mean of its divisors is an integer number (2327158674).

Almost surely, 231013300130 is an apocalyptic number.

31013300130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31013300130 is an abundant number, since it is smaller than the sum of its proper divisors (43455777438).

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

31013300130 is a wasteful number, since it uses less digits than its factorization.

31013300130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516082.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 31013300130 its reverse (3100331013), we get a palindrome (34113631143).

The spelling of 31013300130 in words is "thirty-one billion, thirteen million, three hundred thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2011 4022 6033 10055 12066 20110 30165 60330 514061 1028122 1542183 2570305 3084366 5140610 7710915 15421830 1033776671 2067553342 3101330013 5168883355 6202660026 10337766710 15506650065 31013300130