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23980400 = 245259951
BaseRepresentation
bin101101101111…
…0100101110000
31200010022220222
41123132211300
522114333100
62213552212
7410554463
oct133364560
950108828
1023980400
1112599914
128045668
134c780b2
1432832da
15218a485
hex16de970

23980400 has 30 divisors (see below), whose sum is σ = 57613872. Its totient is φ = 9592000.

The previous prime is 23980399. The next prime is 23980417. The reversal of 23980400 is 408932.

It is a self number, because there is not a number n which added to its sum of digits gives 23980400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29576 + ... + 30375.

Almost surely, 223980400 is an apocalyptic number.

23980400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23980400 is an abundant number, since it is smaller than the sum of its proper divisors (33633472).

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

23980400 is a wasteful number, since it uses less digits than its factorization.

23980400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59969 (or 59958 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 23980400 is about 4896.9786603578. The cubic root of 23980400 is about 288.3713701996.

The spelling of 23980400 in words is "twenty-three million, nine hundred eighty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 59951 119902 239804 299755 479608 599510 959216 1199020 1498775 2398040 2997550 4796080 5995100 11990200 23980400