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23256378 = 2324330047
BaseRepresentation
bin101100010110…
…1110100111010
31121202112202100
41120231310322
521423201003
62150244230
7401450565
oct130556472
947675670
1023256378
1112144952
127956676
134a83692
1431354dc
152095ba3
hex162dd3a

23256378 has 24 divisors (see below), whose sum is σ = 51562368. Its totient is φ = 7571592.

The previous prime is 23256371. The next prime is 23256419. The reversal of 23256378 is 87365232.

23256378 is a `hidden beast` number, since 23 + 2 + 563 + 78 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23256371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14250 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (2148432).

Almost surely, 223256378 is an apocalyptic number.

23256378 is an abundant number, since it is smaller than the sum of its proper divisors (28305990).

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

23256378 is a wasteful number, since it uses less digits than its factorization.

23256378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30098 (or 30095 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 23256378 is about 4822.4867029366. The cubic root of 23256378 is about 285.4394697275.

The spelling of 23256378 in words is "twenty-three million, two hundred fifty-six thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 30047 60094 90141 180282 270423 540846 1292021 2584042 3876063 7752126 11628189 23256378