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23684013 = 3219433221
BaseRepresentation
bin101101001011…
…0001110101101
31122120021100200
41122112032231
522030342023
62203344113
7405211413
oct132261655
948507320
1023684013
1112407171
127b22039
134ba3212
1432072b3
15212c743
hex16963ad

23684013 has 24 divisors (see below), whose sum is σ = 36859680. Its totient is φ = 14605920.

The previous prime is 23683999. The next prime is 23684041. The reversal of 23684013 is 31048632.

It is a happy number.

It is not a de Polignac number, because 23684013 - 26 = 23683949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23684083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5743 + ... + 8963.

It is an arithmetic number, because the mean of its divisors is an integer number (1535820).

Almost surely, 223684013 is an apocalyptic number.

It is an amenable number.

23684013 is a deficient number, since it is larger than the sum of its proper divisors (13175667).

23684013 is a wasteful number, since it uses less digits than its factorization.

23684013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289 (or 3286 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23684013 is about 4866.6223399808. The cubic root of 23684013 is about 287.1783947572.

The spelling of 23684013 in words is "twenty-three million, six hundred eighty-four thousand, thirteen".

Divisors: 1 3 9 19 43 57 129 171 387 817 2451 3221 7353 9663 28989 61199 138503 183597 415509 550791 1246527 2631557 7894671 23684013