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102872001023 = 119352000093
BaseRepresentation
bin101111111001110100…
…1100010100111111111
3100211112022211002222222
41133303221202213333
53141140213013043
6115131515555555
710301156403221
oct1376351424777
9324468732888
10102872001023
113a69a620a70
1217b2b75bbbb
13991582922c
144d9c668411
152a21447d68
hex17f3a629ff

102872001023 has 4 divisors (see below), whose sum is σ = 112224001128. Its totient is φ = 93520000920.

The previous prime is 102872001019. The next prime is 102872001149. The reversal of 102872001023 is 320100278201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320100278201 = 1129100025291.

It is a cyclic number.

It is not a de Polignac number, because 102872001023 - 22 = 102872001019 is a prime.

It is a super-2 number, since 2×1028720010232 (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 = 102872000983 and 102872001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102872001523) 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, 4676000036 + ... + 4676000057.

It is an arithmetic number, because the mean of its divisors is an integer number (28056000282).

Almost surely, 2102872001023 is an apocalyptic number.

102872001023 is a deficient number, since it is larger than the sum of its proper divisors (9352000105).

102872001023 is an equidigital number, since it uses as much as digits as its factorization.

102872001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352000104.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 102872001023 its reverse (320100278201), we get a palindrome (422972279224).

The spelling of 102872001023 in words is "one hundred two billion, eight hundred seventy-two million, one thousand, twenty-three".

Divisors: 1 11 9352000093 102872001023