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253315850 = 2528116247
BaseRepresentation
bin11110001100101…
…00101100001010
3122122122210000112
433012110230022
51004322101400
641045234322
76164102114
oct1706245412
9578583015
10253315850
1111aa98a47
1270a029a2
1340633a48
14259003b4
151738b835
hexf194b0a

253315850 has 24 divisors (see below), whose sum is σ = 471823968. Its totient is φ = 101185200.

The previous prime is 253315837. The next prime is 253315897. The reversal of 253315850 is 58513352.

It is a super-2 number, since 2×2533158502 = 128337839722445000, which contains 22 as substring.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 37427 + ... + 43673.

It is an arithmetic number, because the mean of its divisors is an integer number (19659332).

Almost surely, 2253315850 is an apocalyptic number.

253315850 is a deficient number, since it is larger than the sum of its proper divisors (218508118).

253315850 is a wasteful number, since it uses less digits than its factorization.

253315850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7070 (or 7065 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 253315850 is about 15915.8992834210. The cubic root of 253315850 is about 632.7334408879.

The spelling of 253315850 in words is "two hundred fifty-three million, three hundred fifteen thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 811 1622 4055 6247 8110 12494 20275 31235 40550 62470 156175 312350 5066317 10132634 25331585 50663170 126657925 253315850