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23718964 = 221813
BaseRepresentation
bin101101001111…
…0110000110100
31122122001022011
41122132300310
522033001324
62204214004
7405415333
oct132366064
948561264
1023718964
1112430455
127b3a304
134bb60b9
143215d1a
152137c94
hex169ec34

23718964 has 12 divisors (see below), whose sum is σ = 41738788. Its totient is φ = 11793960.

The previous prime is 23718917. The next prime is 23718971. The reversal of 23718964 is 46981732.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 15539364 = 2860^2 + 3942^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130954 + ... + 131134.

Almost surely, 223718964 is an apocalyptic number.

It is an amenable number.

23718964 is a deficient number, since it is larger than the sum of its proper divisors (18019824).

23718964 is an frugal number, since it uses more digits than its factorization.

23718964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 183 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 23718964 is about 4870.2119050407. The cubic root of 23718964 is about 287.3195904062.

The spelling of 23718964 in words is "twenty-three million, seven hundred eighteen thousand, nine hundred sixty-four".

Divisors: 1 2 4 181 362 724 32761 65522 131044 5929741 11859482 23718964