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23887668 = 2237284377
BaseRepresentation
bin101101100011…
…1111100110100
31122221121201110
41123013330310
522103401133
62211555020
7410020230
oct133077464
948847643
1023887668
1112536182
127bbba70
134c44b1c
14325b5c0
15216cc63
hex16c7f34

23887668 has 24 divisors (see below), whose sum is σ = 63700672. Its totient is φ = 6825024.

The previous prime is 23887651. The next prime is 23887687. The reversal of 23887668 is 86678832.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142105 + ... + 142272.

Almost surely, 223887668 is an apocalyptic number.

23887668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23887668 is an abundant number, since it is smaller than the sum of its proper divisors (39813004).

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

23887668 is a wasteful number, since it uses less digits than its factorization.

23887668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284391 (or 284389 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 23887668 is about 4887.5012020459. The cubic root of 23887668 is about 287.9991801674. Note that the first 3 decimals are identical.

The spelling of 23887668 in words is "twenty-three million, eight hundred eighty-seven thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 284377 568754 853131 1137508 1706262 1990639 3412524 3981278 5971917 7962556 11943834 23887668