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23057463 = 3111371757
BaseRepresentation
bin101011111110…
…1010000110111
31121101102220010
41113331100313
521400314323
62142111303
7366661632
oct127752067
947342803
1023057463
1112019460
12787b533
134a13c90
1430c2c19
152056c93
hex15fd437

23057463 has 32 divisors (see below), whose sum is σ = 36675072. Its totient is φ = 12700800.

The previous prime is 23057453. The next prime is 23057467. The reversal of 23057463 is 36475032.

23057463 = T2042 + T2043 + ... + T2052.

It is not a de Polignac number, because 23057463 - 26 = 23057399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23057463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30081 + ... + 30837.

It is an arithmetic number, because the mean of its divisors is an integer number (1146096).

Almost surely, 223057463 is an apocalyptic number.

23057463 is a deficient number, since it is larger than the sum of its proper divisors (13617609).

23057463 is a wasteful number, since it uses less digits than its factorization.

23057463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 23057463 is about 4801.8187179443. The cubic root of 23057463 is about 284.6233374396.

Subtracting 23057463 from its reverse (36475032), we obtain a square (13417569 = 36632).

The spelling of 23057463 in words is "twenty-three million, fifty-seven thousand, four hundred sixty-three".

Divisors: 1 3 11 13 33 39 71 143 213 429 757 781 923 2271 2343 2769 8327 9841 10153 24981 29523 30459 53747 108251 161241 324753 591217 698711 1773651 2096133 7685821 23057463