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70249616 = 2443102107
BaseRepresentation
bin1000010111111…
…10110010010000
311220012001100122
410023332302100
5120440441431
610545405412
71512053243
oct413766220
9156161318
1070249616
1136721638
121b639868
1311728328
14948925a
156279a7b
hex42fec90

70249616 has 20 divisors (see below), whose sum is σ = 139275312. Its totient is φ = 34307616.

The previous prime is 70249603. The next prime is 70249633. The reversal of 70249616 is 61694207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50366 + ... + 51741.

Almost surely, 270249616 is an apocalyptic number.

It is an amenable number.

70249616 is a deficient number, since it is larger than the sum of its proper divisors (69025696).

70249616 is a wasteful number, since it uses less digits than its factorization.

70249616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102158 (or 102152 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 70249616 is about 8381.5043995693. The cubic root of 70249616 is about 412.6178244381.

The spelling of 70249616 in words is "seventy million, two hundred forty-nine thousand, six hundred sixteen".

Divisors: 1 2 4 8 16 43 86 172 344 688 102107 204214 408428 816856 1633712 4390601 8781202 17562404 35124808 70249616