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70984072 = 2323385783
BaseRepresentation
bin1000011101100…
…10000110001000
311221120100211201
410032302012020
5121132442242
611013233544
71521232435
oct416620610
9157510751
1070984072
1137083425
121b9328b4
1311924713
1495dab8c
1563724b7
hex43b2188

70984072 has 16 divisors (see below), whose sum is σ = 138882240. Its totient is φ = 33948816.

The previous prime is 70984063. The next prime is 70984073. The reversal of 70984072 is 27048907.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70984073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192708 + ... + 193075.

It is an arithmetic number, because the mean of its divisors is an integer number (8680140).

Almost surely, 270984072 is an apocalyptic number.

It is an amenable number.

70984072 is a deficient number, since it is larger than the sum of its proper divisors (67898168).

70984072 is a wasteful number, since it uses less digits than its factorization.

70984072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385812 (or 385808 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 70984072 is about 8425.2045672494. The cubic root of 70984072 is about 414.0508078635.

The spelling of 70984072 in words is "seventy million, nine hundred eighty-four thousand, seventy-two".

Divisors: 1 2 4 8 23 46 92 184 385783 771566 1543132 3086264 8873009 17746018 35492036 70984072