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23276320 = 255145477
BaseRepresentation
bin101100011001…
…0101100100000
31121210120002221
41120302230200
521424320240
62150520424
7401562664
oct130625440
947716087
1023276320
1112158931
127966114
134a8c792
14313c8a4
15209ba4a
hex1632b20

23276320 has 24 divisors (see below), whose sum is σ = 54990684. Its totient is φ = 9310464.

The previous prime is 23276317. The next prime is 23276339. The reversal of 23276320 is 2367232.

It can be written as a sum of positive squares in 2 ways, for example, as 21864976 + 1411344 = 4676^2 + 1188^2 .

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, 72579 + ... + 72898.

Almost surely, 223276320 is an apocalyptic number.

23276320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23276320 is an abundant number, since it is smaller than the sum of its proper divisors (31714364).

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

23276320 is a wasteful number, since it uses less digits than its factorization.

23276320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145492 (or 145484 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 23276320 is about 4824.5538653849. The cubic root of 23276320 is about 285.5210331260.

The spelling of 23276320 in words is "twenty-three million, two hundred seventy-six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 145477 290954 581908 727385 1163816 1454770 2327632 2909540 4655264 5819080 11638160 23276320