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23144275 = 5271121093
BaseRepresentation
bin101100001001…
…0011101010011
31121112211222101
41120102131103
521411104100
62144021231
7400503010
oct130223523
947484871
1023144275
1112078700
127901817
134a4464b
143106707
15207286a
hex1612753

23144275 has 36 divisors (see below), whose sum is σ = 36084496. Its totient is φ = 14414400.

The previous prime is 23144273. The next prime is 23144311. The reversal of 23144275 is 57244132.

It is not a de Polignac number, because 23144275 - 21 = 23144273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23144273) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20629 + ... + 21721.

Almost surely, 223144275 is an apocalyptic number.

23144275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23144275 is a deficient number, since it is larger than the sum of its proper divisors (12940221).

23144275 is a wasteful number, since it uses less digits than its factorization.

23144275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1116 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 23144275 is about 4810.8497170458. The cubic root of 23144275 is about 284.9800950498.

The spelling of 23144275 in words is "twenty-three million, one hundred forty-four thousand, two hundred seventy-five".

Divisors: 1 5 7 11 25 35 55 77 121 175 275 385 605 847 1093 1925 3025 4235 5465 7651 12023 21175 27325 38255 60115 84161 132253 191275 300575 420805 661265 925771 2104025 3306325 4628855 23144275