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10120001995 = 5171091092283
BaseRepresentation
bin10010110110011001…
…01111100111001011
3222010021120100220201
421123030233213023
5131211210030440
64352110433031
7505532411665
oct113314574713
928107510821
1010120001995
114323528314
121b65202777
13c5381527c
146c007d535
153e36b419a
hex25b32f9cb

10120001995 has 16 divisors (see below), whose sum is σ = 12976333920. Its totient is φ = 7549853184.

The previous prime is 10120001993. The next prime is 10120002007. The reversal of 10120001995 is 59910002101.

It is a cyclic number.

It is not a de Polignac number, because 10120001995 - 21 = 10120001993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120001993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536877 + ... + 555406.

It is an arithmetic number, because the mean of its divisors is an integer number (811020870).

Almost surely, 210120001995 is an apocalyptic number.

10120001995 is a deficient number, since it is larger than the sum of its proper divisors (2856331925).

10120001995 is a wasteful number, since it uses less digits than its factorization.

10120001995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092414.

The product of its (nonzero) digits is 810, while the sum is 28.

The spelling of 10120001995 in words is "ten billion, one hundred twenty million, one thousand, nine hundred ninety-five".

Divisors: 1 5 17 85 109 545 1853 9265 1092283 5461415 18568811 92844055 119058847 595294235 2024000399 10120001995