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252729867 = 31322917189
BaseRepresentation
bin11110001000001…
…01101000001011
3122121120000012110
433010011220023
51004144323432
641024513403
76156111525
oct1704055013
9577500173
10252729867
1111a728765
127077b863
134048a100
14257caa15
15172c2dcc
hexf105a0b

252729867 has 24 divisors (see below), whose sum is σ = 377492400. Its totient is φ = 150154368.

The previous prime is 252729853. The next prime is 252729889. The reversal of 252729867 is 768927252.

It is not a de Polignac number, because 252729867 - 210 = 252728843 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (252729817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6109 + ... + 23297.

It is an arithmetic number, because the mean of its divisors is an integer number (15728850).

Almost surely, 2252729867 is an apocalyptic number.

252729867 is a deficient number, since it is larger than the sum of its proper divisors (124762533).

252729867 is a wasteful number, since it uses less digits than its factorization.

252729867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17247 (or 17234 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 252729867 is about 15897.4798946248. The cubic root of 252729867 is about 632.2451738973.

The spelling of 252729867 in words is "two hundred fifty-two million, seven hundred twenty-nine thousand, eight hundred sixty-seven".

Divisors: 1 3 13 29 39 87 169 377 507 1131 4901 14703 17189 51567 223457 498481 670371 1495443 2904941 6480253 8714823 19440759 84243289 252729867