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252619842 = 2367762191
BaseRepresentation
bin11110000111010…
…10110001000010
3122121100102021110
433003222301002
51004132313332
641022304150
76155142666
oct1703526102
9577312243
10252619842
1111a663032
1270728056
134044bcc7
142579c8a6
15172a04cc
hexf0eac42

252619842 has 16 divisors (see below), whose sum is σ = 505994112. Its totient is φ = 84080880.

The previous prime is 252619793. The next prime is 252619853. The reversal of 252619842 is 248916252.

It is a self number, because there is not a number n which added to its sum of digits gives 252619842.

It is an unprimeable number.

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, 27034 + ... + 35157.

It is an arithmetic number, because the mean of its divisors is an integer number (31624632).

Almost surely, 2252619842 is an apocalyptic number.

252619842 is an abundant number, since it is smaller than the sum of its proper divisors (253374270).

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

252619842 is a wasteful number, since it uses less digits than its factorization.

252619842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62873.

The product of its digits is 69120, while the sum is 39.

The square root of 252619842 is about 15894.0190637862. The cubic root of 252619842 is about 632.1534120580.

The spelling of 252619842 in words is "two hundred fifty-two million, six hundred nineteen thousand, eight hundred forty-two".

Divisors: 1 2 3 6 677 1354 2031 4062 62191 124382 186573 373146 42103307 84206614 126309921 252619842