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252184872 = 23319553037
BaseRepresentation
bin11110000100000…
…00100100101000
3122120112022121110
433002000210220
51004024403442
641005110320
76151351602
oct1702004450
9576468543
10252184872
1111a396255
12705583a0
1340329024
14256c8172
151721669c
hexf080928

252184872 has 32 divisors (see below), whose sum is σ = 663645600. Its totient is φ = 79637184.

The previous prime is 252184871. The next prime is 252184883. The reversal of 252184872 is 278481252.

It is a self number, because there is not a number n which added to its sum of digits gives 252184872.

It is not an unprimeable number, because it can be changed into a prime (252184871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276063 + ... + 276974.

It is an arithmetic number, because the mean of its divisors is an integer number (20738925).

Almost surely, 2252184872 is an apocalyptic number.

It is an amenable number.

252184872 is an abundant number, since it is smaller than the sum of its proper divisors (411460728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252184872 is a wasteful number, since it uses less digits than its factorization.

252184872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553065 (or 553061 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 252184872 is about 15880.3297194989. The cubic root of 252184872 is about 631.7903820665.

The spelling of 252184872 in words is "two hundred fifty-two million, one hundred eighty-four thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 553037 1106074 1659111 2212148 3318222 4424296 6636444 10507703 13272888 21015406 31523109 42030812 63046218 84061624 126092436 252184872