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23695940 = 2251184797
BaseRepresentation
bin101101001100…
…1001001000100
31122120212201102
41122121021010
522031232230
62203515232
7405261242
oct132311104
948525642
1023695940
1112415124
127b28b18
134ba8788
14320b792
152131045
hex1699244

23695940 has 12 divisors (see below), whose sum is σ = 49761516. Its totient is φ = 9478368.

The previous prime is 23695937. The next prime is 23695951. The reversal of 23695940 is 4959632.

It can be written as a sum of positive squares in 2 ways, for example, as 3211264 + 20484676 = 1792^2 + 4526^2 .

It is a super-2 number, since 2×236959402 = 1122995144967200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23695894 and 23695903.

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, 592379 + ... + 592418.

It is an arithmetic number, because the mean of its divisors is an integer number (4146793).

Almost surely, 223695940 is an apocalyptic number.

23695940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23695940 is an abundant number, since it is smaller than the sum of its proper divisors (26065576).

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

23695940 is a wasteful number, since it uses less digits than its factorization.

23695940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184806 (or 1184804 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 23695940 is about 4867.8475736202. The cubic root of 23695940 is about 287.2265932602.

The spelling of 23695940 in words is "twenty-three million, six hundred ninety-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1184797 2369594 4739188 5923985 11847970 23695940