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10102113031 = 17594241943
BaseRepresentation
bin10010110100010001…
…00000001100000111
3222002000220111212111
421122020200030013
5131142120104111
64350231201451
7505224354403
oct113210401407
928060814774
1010102113031
11431441a04a
121b5b216287
13c4cbc099a
146bb944103
153e1d2da21
hex25a220307

10102113031 has 4 divisors (see below), whose sum is σ = 10696354992. Its totient is φ = 9507871072.

The previous prime is 10102113029. The next prime is 10102113037. The reversal of 10102113031 is 13031120101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10102113031 - 21 = 10102113029 is a prime.

It is a super-2 number, since 2×101021130312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102113037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297120955 + ... + 297120988.

It is an arithmetic number, because the mean of its divisors is an integer number (2674088748).

Almost surely, 210102113031 is an apocalyptic number.

10102113031 is a deficient number, since it is larger than the sum of its proper divisors (594241961).

10102113031 is an equidigital number, since it uses as much as digits as its factorization.

10102113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594241960.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10102113031 its reverse (13031120101), we get a palindrome (23133233132).

The spelling of 10102113031 in words is "ten billion, one hundred two million, one hundred thirteen thousand, thirty-one".

Divisors: 1 17 594241943 10102113031