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252485912 = 2378575261
BaseRepresentation
bin11110000110010…
…10000100011000
3122121002121120002
433003022010120
51004114022122
641015352132
76154044350
oct1703120430
9577077502
10252485912
1111a581448
1270682648
1340403063
1425765b60
1517275992
hexf0ca118

252485912 has 32 divisors (see below), whose sum is σ = 541775520. Its totient is φ = 108061440.

The previous prime is 252485911. The next prime is 252485929. The reversal of 252485912 is 219584252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252485911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45362 + ... + 50622.

It is an arithmetic number, because the mean of its divisors is an integer number (16930485).

Almost surely, 2252485912 is an apocalyptic number.

It is an amenable number.

252485912 is an abundant number, since it is smaller than the sum of its proper divisors (289289608).

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

252485912 is a wasteful number, since it uses less digits than its factorization.

252485912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131 (or 6127 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 252485912 is about 15889.8052851506. The cubic root of 252485912 is about 632.0416772708.

The spelling of 252485912 in words is "two hundred fifty-two million, four hundred eighty-five thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 857 1714 3428 5261 5999 6856 10522 11998 21044 23996 36827 42088 47992 73654 147308 294616 4508677 9017354 18034708 31560739 36069416 63121478 126242956 252485912