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23872857067 = 84312831557
BaseRepresentation
bin10110001110111011…
…101110001111101011
32021121201222210101101
4112032323232033223
5342342422411232
614544514102231
71503406636243
oct261673561753
967551883341
1023872857067
11a140672944
124762b7a977
132335b71137
1412267c0b23
1594ac791e7
hex58eeee3eb

23872857067 has 4 divisors (see below), whose sum is σ = 23875697056. Its totient is φ = 23870017080.

The previous prime is 23872857049. The next prime is 23872857077. The reversal of 23872857067 is 76075827832.

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 23872857067 - 215 = 23872824299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23872856999 and 23872857017.

It is not an unprimeable number, because it can be changed into a prime (23872857037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407348 + ... + 1424209.

It is an arithmetic number, because the mean of its divisors is an integer number (5968924264).

Almost surely, 223872857067 is an apocalyptic number.

23872857067 is a deficient number, since it is larger than the sum of its proper divisors (2839989).

23872857067 is an equidigital number, since it uses as much as digits as its factorization.

23872857067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839988.

The product of its (nonzero) digits is 7902720, while the sum is 55.

The spelling of 23872857067 in words is "twenty-three billion, eight hundred seventy-two million, eight hundred fifty-seven thousand, sixty-seven".

Divisors: 1 8431 2831557 23872857067