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252742124 = 22234758451
BaseRepresentation
bin11110001000010…
…00100111101100
3122121120122000102
433010020213230
51004200221444
641025050232
76156162335
oct1704104754
9577518012
10252742124
1111a736998
1270786978
134049286b
14257d128c
15172c684e
hexf1089ec

252742124 has 24 divisors (see below), whose sum is σ = 471356928. Its totient is φ = 118302800.

The previous prime is 252742109. The next prime is 252742129. The reversal of 252742124 is 421247252.

It is not an unprimeable number, because it can be changed into a prime (252742129) 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 7 ways as a sum of consecutive naturals, for example, 24902 + ... + 33549.

It is an arithmetic number, because the mean of its divisors is an integer number (19639872).

Almost surely, 2252742124 is an apocalyptic number.

It is an amenable number.

252742124 is a deficient number, since it is larger than the sum of its proper divisors (218614804).

252742124 is a wasteful number, since it uses less digits than its factorization.

252742124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58525 (or 58523 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 252742124 is about 15897.8653913033. The cubic root of 252742124 is about 632.2553946967.

Adding to 252742124 its reverse (421247252), we get a palindrome (673989376).

The spelling of 252742124 in words is "two hundred fifty-two million, seven hundred forty-two thousand, one hundred twenty-four".

Divisors: 1 2 4 23 46 47 92 94 188 1081 2162 4324 58451 116902 233804 1344373 2688746 2747197 5377492 5494394 10988788 63185531 126371062 252742124