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70917064 = 23172917981
BaseRepresentation
bin1000011101000…
…01101111001000
311221102221220221
410032201233020
5121123321224
611011555424
71520533201
oct416415710
9157387827
1070917064
1137038049
121b8bbb74
131190007a
1495c05a8
15635c6e4
hex43a1bc8

70917064 has 32 divisors (see below), whose sum is σ = 145654200. Its totient is φ = 32220160.

The previous prime is 70917059. The next prime is 70917071. The reversal of 70917064 is 46071907.

It can be written as a sum of positive squares in 4 ways, for example, as 69856164 + 1060900 = 8358^2 + 1030^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 5047 + ... + 12934.

Almost surely, 270917064 is an apocalyptic number.

It is an amenable number.

70917064 is an abundant number, since it is smaller than the sum of its proper divisors (74737136).

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

70917064 is a wasteful number, since it uses less digits than its factorization.

70917064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033 (or 18029 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70917064 is about 8421.2269889844. The cubic root of 70917064 is about 413.9204807326.

The spelling of 70917064 in words is "seventy million, nine hundred seventeen thousand, sixty-four".

Divisors: 1 2 4 8 17 29 34 58 68 116 136 232 493 986 1972 3944 17981 35962 71924 143848 305677 521449 611354 1042898 1222708 2085796 2445416 4171592 8864633 17729266 35458532 70917064