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23045251 = 176171313
BaseRepresentation
bin101011111101…
…0010010000011
31121100211010211
41113322102003
521344422001
62141534551
7366611215
oct127722203
947324124
1023045251
1112010269
127874457
134a0b558
1430bc5b5
152053351
hex15fa483

23045251 has 16 divisors (see below), whose sum is σ = 25230528. Its totient is φ = 20966400.

The previous prime is 23045249. The next prime is 23045261. The reversal of 23045251 is 15254032.

It is a cyclic number.

It is not a de Polignac number, because 23045251 - 21 = 23045249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23045201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73471 + ... + 73783.

It is an arithmetic number, because the mean of its divisors is an integer number (1576908).

Almost surely, 223045251 is an apocalyptic number.

23045251 is a deficient number, since it is larger than the sum of its proper divisors (2185277).

23045251 is a wasteful number, since it uses less digits than its factorization.

23045251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 23045251 is about 4800.5469480050. The cubic root of 23045251 is about 284.5730799009.

Adding to 23045251 its reverse (15254032), we get a palindrome (38299283).

The spelling of 23045251 in words is "twenty-three million, forty-five thousand, two hundred fifty-one".

Divisors: 1 17 61 71 313 1037 1207 4331 5321 19093 22223 73627 324581 377791 1355603 23045251