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252488274 = 2343739623
BaseRepresentation
bin11110000110010…
…10101001010010
3122121002201210120
433003022221102
51004114111044
641015411110
76154054263
oct1703125122
9577081716
10252488274
1111a5831a5
1270683a96
134040415c
142576696a
1517276519
hexf0caa52

252488274 has 16 divisors (see below), whose sum is σ = 505144512. Its totient is φ = 84134768.

The previous prime is 252488263. The next prime is 252488279. The reversal of 252488274 is 472884252.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (252488279) 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, 21427 + ... + 31049.

It is an arithmetic number, because the mean of its divisors is an integer number (31571532).

Almost surely, 2252488274 is an apocalyptic number.

252488274 is an abundant number, since it is smaller than the sum of its proper divisors (252656238).

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

252488274 is a wasteful number, since it uses less digits than its factorization.

252488274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14001.

The product of its digits is 286720, while the sum is 42.

The square root of 252488274 is about 15889.8796093614. The cubic root of 252488274 is about 632.0436481765.

The spelling of 252488274 in words is "two hundred fifty-two million, four hundred eighty-eight thousand, two hundred seventy-four".

Divisors: 1 2 3 6 4373 8746 9623 13119 19246 26238 28869 57738 42081379 84162758 126244137 252488274