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23869889771 = 7131715429793
BaseRepresentation
bin10110001110110000…
…011001110011101011
32021121112102001000112
4112032300121303223
5342341142433041
614544330324535
71503342500240
oct261660316353
967545361015
1023869889771
11a139a26532
124761b8974b
132335372640
14122624b5c7
1594a88edeb
hex58ec19ceb

23869889771 has 16 divisors (see below), whose sum is σ = 31106464704. Its totient is φ = 17775120384.

The previous prime is 23869889767. The next prime is 23869889773. The reversal of 23869889771 is 17798896832.

It is not a de Polignac number, because 23869889771 - 22 = 23869889767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23869889773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7713350 + ... + 7716443.

It is an arithmetic number, because the mean of its divisors is an integer number (1944154044).

Almost surely, 223869889771 is an apocalyptic number.

23869889771 is a deficient number, since it is larger than the sum of its proper divisors (7236574933).

23869889771 is a wasteful number, since it uses less digits than its factorization.

23869889771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15429830.

The product of its digits is 73156608, while the sum is 68.

The spelling of 23869889771 in words is "twenty-three billion, eight hundred sixty-nine million, eight hundred eighty-nine thousand, seven hundred seventy-one".

Divisors: 1 7 13 17 91 119 221 1547 15429793 108008551 200587309 262306481 1404111163 1836145367 3409984253 23869889771