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23696740 = 2251184837
BaseRepresentation
bin101101001100…
…1010101100100
31122120220211001
41122121111210
522031243430
62203523044
7405263464
oct132312544
948526731
1023696740
1112415791
127b29484
134ba8c52
14320bba4
1521313ca
hex1699564

23696740 has 12 divisors (see below), whose sum is σ = 49763196. Its totient is φ = 9478688.

The previous prime is 23696737. The next prime is 23696767. The reversal of 23696740 is 4769632.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 16842816 = 2618^2 + 4104^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23696740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592399 + ... + 592438.

It is an arithmetic number, because the mean of its divisors is an integer number (4146933).

Almost surely, 223696740 is an apocalyptic number.

23696740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23696740 is an abundant number, since it is smaller than the sum of its proper divisors (26066456).

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

23696740 is a wasteful number, since it uses less digits than its factorization.

23696740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184846 (or 1184844 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 23696740 is about 4867.9297447683. The cubic root of 23696740 is about 287.2298255817.

The spelling of 23696740 in words is "twenty-three million, six hundred ninety-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1184837 2369674 4739348 5924185 11848370 23696740