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70074628 = 22132236043
BaseRepresentation
bin1000010110101…
…00000100000100
311212212011022121
410023110010010
5120414342003
610541535324
71510424131
oct413240404
9155764277
1070074628
1136612118
121b574544
13116967a0
149441588
156242cbd
hex42d4104

70074628 has 24 divisors (see below), whose sum is σ = 132677888. Its totient is φ = 32191776.

The previous prime is 70074623. The next prime is 70074637. The reversal of 70074628 is 82647007.

It is a junction number, because it is equal to n+sod(n) for n = 70074593 and 70074602.

It is not an unprimeable number, because it can be changed into a prime (70074623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8575 + ... + 14617.

Almost surely, 270074628 is an apocalyptic number.

It is an amenable number.

70074628 is a deficient number, since it is larger than the sum of its proper divisors (62603260).

70074628 is a wasteful number, since it uses less digits than its factorization.

70074628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283 (or 6281 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 70074628 is about 8371.0589533225. The cubic root of 70074628 is about 412.2749366689.

The spelling of 70074628 in words is "seventy million, seventy-four thousand, six hundred twenty-eight".

Divisors: 1 2 4 13 26 52 223 446 892 2899 5798 6043 11596 12086 24172 78559 157118 314236 1347589 2695178 5390356 17518657 35037314 70074628