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252280364 = 22717352081
BaseRepresentation
bin11110000100101…
…11111000101100
3122120201011121012
433002113320230
51004040432424
641011124352
76152230160
oct1702277054
9576634535
10252280364
1111a450a76
12705a36b8
134036062b
1425710ca0
1517234b0e
hexf097e2c

252280364 has 24 divisors (see below), whose sum is σ = 507487008. Its totient is φ = 107493120.

The previous prime is 252280363. The next prime is 252280397. The reversal of 252280364 is 463082252.

It is a self number, because there is not a number n which added to its sum of digits gives 252280364.

It is not an unprimeable number, because it can be changed into a prime (252280361) 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, 21197 + ... + 30884.

It is an arithmetic number, because the mean of its divisors is an integer number (21145292).

Almost surely, 2252280364 is an apocalyptic number.

It is an amenable number.

252280364 is an abundant number, since it is smaller than the sum of its proper divisors (255206644).

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

252280364 is a wasteful number, since it uses less digits than its factorization.

252280364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52265 (or 52263 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 252280364 is about 15883.3360475688. The cubic root of 252280364 is about 631.8701163151.

The spelling of 252280364 in words is "two hundred fifty-two million, two hundred eighty thousand, three hundred sixty-four".

Divisors: 1 2 4 7 14 28 173 346 692 1211 2422 4844 52081 104162 208324 364567 729134 1458268 9010013 18020026 36040052 63070091 126140182 252280364