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253803972 = 22321150331
BaseRepresentation
bin11110010000010…
…11110111000100
3122200120120121010
433020023313010
51004433211342
641103522220
76201204162
oct1710136704
9580516533
10253803972
111202a1754
1270bb9370
1340774c86
14259ca232
151743629c
hexf20bdc4

253803972 has 12 divisors (see below), whose sum is σ = 592209296. Its totient is φ = 84601320.

The previous prime is 253803959. The next prime is 253803983. The reversal of 253803972 is 279308352.

253803972 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 253803972.

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, 10575154 + ... + 10575177.

Almost surely, 2253803972 is an apocalyptic number.

It is an amenable number.

253803972 is an abundant number, since it is smaller than the sum of its proper divisors (338405324).

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

253803972 is a wasteful number, since it uses less digits than its factorization.

253803972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21150338 (or 21150336 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 253803972 is about 15931.2263181464. The cubic root of 253803972 is about 633.1395912157.

The spelling of 253803972 in words is "two hundred fifty-three million, eight hundred three thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 21150331 42300662 63450993 84601324 126901986 253803972