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23964430 = 257248907
BaseRepresentation
bin101101101101…
…0101100001110
31200002112000111
41123122230032
522113330210
62213350234
7410460100
oct133325416
950075014
1023964430
1112588916
12803837a
134c70a49
14327b570
15218588a
hex16dab0e

23964430 has 24 divisors (see below), whose sum is σ = 50179608. Its totient is φ = 8216208.

The previous prime is 23964397. The next prime is 23964431. The reversal of 23964430 is 3446932.

It is a junction number, because it is equal to n+sod(n) for n = 23964392 and 23964401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23964431) 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, 23964 + ... + 24943.

It is an arithmetic number, because the mean of its divisors is an integer number (2090817).

Almost surely, 223964430 is an apocalyptic number.

23964430 is an abundant number, since it is smaller than the sum of its proper divisors (26215178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23964430 is a wasteful number, since it uses less digits than its factorization.

23964430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48928 (or 48921 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23964430 is about 4895.3477915262. The cubic root of 23964430 is about 288.3073413333.

The spelling of 23964430 in words is "twenty-three million, nine hundred sixty-four thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 48907 97814 244535 342349 489070 684698 1711745 2396443 3423490 4792886 11982215 23964430