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70561284 = 22342113967
BaseRepresentation
bin1000011010010…
…10111000000100
311220202212212220
410031022320010
5121030430114
611000212340
71514522013
oct415127004
9156685786
1070561284
1136914812
121b76a0b0
1311807151
14952aa7a
1562dc0a9
hex434ae04

70561284 has 24 divisors (see below), whose sum is σ = 165045888. Its totient is φ = 23462880.

The previous prime is 70561279. The next prime is 70561297. The reversal of 70561284 is 48216507.

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, 1932 + ... + 12035.

It is an arithmetic number, because the mean of its divisors is an integer number (6876912).

Almost surely, 270561284 is an apocalyptic number.

It is an amenable number.

70561284 is an abundant number, since it is smaller than the sum of its proper divisors (94484604).

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

70561284 is a wasteful number, since it uses less digits than its factorization.

70561284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14395 (or 14393 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 70561284 is about 8400.0764282237. The cubic root of 70561284 is about 413.2271281646.

The spelling of 70561284 in words is "seventy million, five hundred sixty-one thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 421 842 1263 1684 2526 5052 13967 27934 41901 55868 83802 167604 5880107 11760214 17640321 23520428 35280642 70561284