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102112302031 = 4671873116741
BaseRepresentation
bin101111100011001011…
…1100001001111001111
3100202120101022101220021
41133012113201033033
53133111222131111
6114524301003011
710243303150315
oct1370627411717
9322511271807
10102112302031
113a33a806963
1217959253467
139824316bbc
144d297d00b5
1529c98d1d71
hex17c65e13cf

102112302031 has 8 divisors (see below), whose sum is σ = 102386469744. Its totient is φ = 101838372480.

The previous prime is 102112302023. The next prime is 102112302049. The reversal of 102112302031 is 130203211201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102112302031 - 23 = 102112302023 is a prime.

It is a super-2 number, since 2×1021123020312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102112301996 and 102112302014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112302011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816321 + ... + 933061.

It is an arithmetic number, because the mean of its divisors is an integer number (12798308718).

Almost surely, 2102112302031 is an apocalyptic number.

102112302031 is a deficient number, since it is larger than the sum of its proper divisors (274167713).

102112302031 is a wasteful number, since it uses less digits than its factorization.

102112302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119081.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102112302031 its reverse (130203211201), we get a palindrome (232315513232).

The spelling of 102112302031 in words is "one hundred two billion, one hundred twelve million, three hundred two thousand, thirty-one".

Divisors: 1 467 1873 116741 874691 54518047 218655893 102112302031