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253830568 = 2353598657
BaseRepresentation
bin11110010000100…
…10010110101000
3122200121221002011
433020102112220
51004440034233
641104245304
76201344545
oct1710222650
9580557064
10253830568
1112030a732
1271010834
1340784104
14259d5bcc
151743e0cd
hexf2125a8

253830568 has 16 divisors (see below), whose sum is σ = 484912980. Its totient is φ = 124520448.

The previous prime is 253830559. The next prime is 253830571. The reversal of 253830568 is 865038352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252237924 + 1592644 = 15882^2 + 1262^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253830568.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298905 + ... + 299752.

Almost surely, 2253830568 is an apocalyptic number.

It is an amenable number.

253830568 is a deficient number, since it is larger than the sum of its proper divisors (231082412).

253830568 is a wasteful number, since it uses less digits than its factorization.

253830568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598716 (or 598712 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 253830568 is about 15932.0610091727. The cubic root of 253830568 is about 633.1617059109.

The spelling of 253830568 in words is "two hundred fifty-three million, eight hundred thirty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 53 106 212 424 598657 1197314 2394628 4789256 31728821 63457642 126915284 253830568