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23379957 = 322597773
BaseRepresentation
bin101100100101…
…1111111110101
31121222211021100
41121023333311
521441124312
62153040313
7402504066
oct131137765
947884240
1023379957
1112219787
1279b6099
134ac79c3
14316856d
1520bc5dc
hex164bff5

23379957 has 6 divisors (see below), whose sum is σ = 33771062. Its totient is φ = 15586632.

The previous prime is 23379953. The next prime is 23379959. The reversal of 23379957 is 75997332.

It can be written as a sum of positive squares in only one way, i.e., 18740241 + 4639716 = 4329^2 + 2154^2 .

It is not a de Polignac number, because 23379957 - 22 = 23379953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23379953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1298878 + ... + 1298895.

Almost surely, 223379957 is an apocalyptic number.

It is an amenable number.

23379957 is a deficient number, since it is larger than the sum of its proper divisors (10391105).

23379957 is a wasteful number, since it uses less digits than its factorization.

23379957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597779 (or 2597776 counting only the distinct ones).

The product of its digits is 357210, while the sum is 45.

The square root of 23379957 is about 4835.2825150140. The cubic root of 23379957 is about 285.9441632237.

It can be divided in two parts, 23379 and 957, that added together give a square (24336 = 1562).

The spelling of 23379957 in words is "twenty-three million, three hundred seventy-nine thousand, nine hundred fifty-seven".

Divisors: 1 3 9 2597773 7793319 23379957