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23250018 = 2311352273
BaseRepresentation
bin101100010110…
…0010001100010
31121202020000210
41120230101202
521423000033
62150154550
7401423211
oct130542142
947666023
1023250018
11121400a0
127952a56
134a8080c
143133078
152093d63
hex162c462

23250018 has 16 divisors (see below), whose sum is σ = 50727456. Its totient is φ = 7045440.

The previous prime is 23250001. The next prime is 23250037. The reversal of 23250018 is 81005232.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23249976 and 23250003.

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, 176071 + ... + 176202.

It is an arithmetic number, because the mean of its divisors is an integer number (3170466).

Almost surely, 223250018 is an apocalyptic number.

23250018 is an abundant number, since it is smaller than the sum of its proper divisors (27477438).

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

23250018 is a wasteful number, since it uses less digits than its factorization.

23250018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352289.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 23250018 is about 4821.8272470092. The cubic root of 23250018 is about 285.4134473243.

The spelling of 23250018 in words is "twenty-three million, two hundred fifty thousand, eighteen".

Divisors: 1 2 3 6 11 22 33 66 352273 704546 1056819 2113638 3875003 7750006 11625009 23250018