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70850864 = 247290371
BaseRepresentation
bin1000011100100…
…01100100110000
311221022121010002
410032101210300
5121114211424
611010325132
71520136200
oct416214460
9157277102
1070850864
1136aa2337
121b8897a8
13118a8bb6
1495a4400
156347cae
hex4391930

70850864 has 30 divisors (see below), whose sum is σ = 159687324. Its totient is φ = 30364320.

The previous prime is 70850863. The next prime is 70850921. The reversal of 70850864 is 46805807.

It is not an unprimeable number, because it can be changed into a prime (70850863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44402 + ... + 45969.

Almost surely, 270850864 is an apocalyptic number.

It is an amenable number.

70850864 is an abundant number, since it is smaller than the sum of its proper divisors (88836460).

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

70850864 is a wasteful number, since it uses less digits than its factorization.

70850864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90393 (or 90380 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 70850864 is about 8417.2955276621. The cubic root of 70850864 is about 413.7916444789.

The spelling of 70850864 in words is "seventy million, eight hundred fifty thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 90371 180742 361484 632597 722968 1265194 1445936 2530388 4428179 5060776 8856358 10121552 17712716 35425432 70850864