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23323199977 = 721143271243
BaseRepresentation
bin10101101110001010…
…111100100111101001
32020012102201022121101
4111232022330213221
5340231214344402
614414201041401
71453653633400
oct255612744751
966172638541
1023323199977
11998937a390
12462aa86261
132279020a5c
1411b37c0637
159178a2b87
hex56e2bc9e9

23323199977 has 12 divisors (see below), whose sum is σ = 29597530896. Its totient is φ = 18173921640.

The previous prime is 23323199971. The next prime is 23323199987. The reversal of 23323199977 is 77999132332.

It is not a de Polignac number, because 23323199977 - 27 = 23323199849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23323199971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21635083 + ... + 21636160.

It is an arithmetic number, because the mean of its divisors is an integer number (2466460908).

Almost surely, 223323199977 is an apocalyptic number.

It is an amenable number.

23323199977 is a deficient number, since it is larger than the sum of its proper divisors (6274330919).

23323199977 is a wasteful number, since it uses less digits than its factorization.

23323199977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43271268 (or 43271261 counting only the distinct ones).

The product of its digits is 3857868, while the sum is 55.

The spelling of 23323199977 in words is "twenty-three billion, three hundred twenty-three million, one hundred ninety-nine thousand, nine hundred seventy-seven".

Divisors: 1 7 11 49 77 539 43271243 302898701 475983673 2120290907 3331885711 23323199977