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252557872 = 2474994519
BaseRepresentation
bin11110000110110…
…11101000110000
3122121020021021021
433003123220300
51004123322442
641021105224
76154464220
oct1703335060
9577207237
10252557872
1111a620516
12706b8214
1340429a38
1425784080
151728be67
hexf0dba30

252557872 has 40 divisors (see below), whose sum is σ = 560480000. Its totient is φ = 107998272.

The previous prime is 252557867. The next prime is 252557887. The reversal of 252557872 is 278755252.

252557872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53629 + ... + 58147.

It is an arithmetic number, because the mean of its divisors is an integer number (14012000).

Almost surely, 2252557872 is an apocalyptic number.

It is an amenable number.

252557872 is an abundant number, since it is smaller than the sum of its proper divisors (307922128).

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

252557872 is a wasteful number, since it uses less digits than its factorization.

252557872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033 (or 5027 counting only the distinct ones).

The product of its digits is 392000, while the sum is 43.

The square root of 252557872 is about 15892.0694687633. The cubic root of 252557872 is about 632.1017167908.

The spelling of 252557872 in words is "two hundred fifty-two million, five hundred fifty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 499 998 1996 3493 3992 4519 6986 7984 9038 13972 18076 27944 31633 36152 55888 63266 72304 126532 253064 506128 2254981 4509962 9019924 15784867 18039848 31569734 36079696 63139468 126278936 252557872