Base | Representation |
---|---|
bin | 101111111001110100… |
… | …1100010100111111111 |
3 | 100211112022211002222222 |
4 | 1133303221202213333 |
5 | 3141140213013043 |
6 | 115131515555555 |
7 | 10301156403221 |
oct | 1376351424777 |
9 | 324468732888 |
10 | 102872001023 |
11 | 3a69a620a70 |
12 | 17b2b75bbbb |
13 | 991582922c |
14 | 4d9c668411 |
15 | 2a21447d68 |
hex | 17f3a629ff |
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 = 11 ⋅29100025291.
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".
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