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253360284 = 22321113357
BaseRepresentation
bin11110001100111…
…11100010011100
3122122202000222020
433012133202130
51004330012114
641050220140
76164345502
oct1706374234
9578660866
10253360284
11120019371
1270a24650
134064b038
1425912672
1517399aa9
hexf19f89c

253360284 has 12 divisors (see below), whose sum is σ = 591174024. Its totient is φ = 84453424.

The previous prime is 253360277. The next prime is 253360291. The reversal of 253360284 is 482063352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253360277) and next prime (253360291).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 10556667 + ... + 10556690.

It is an arithmetic number, because the mean of its divisors is an integer number (49264502).

Almost surely, 2253360284 is an apocalyptic number.

It is an amenable number.

253360284 is an abundant number, since it is smaller than the sum of its proper divisors (337813740).

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

253360284 is a wasteful number, since it uses less digits than its factorization.

253360284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21113364 (or 21113362 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 253360284 is about 15917.2951219735. The cubic root of 253360284 is about 632.7704345384.

The spelling of 253360284 in words is "two hundred fifty-three million, three hundred sixty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 21113357 42226714 63340071 84453428 126680142 253360284