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70426688 = 263729741
BaseRepresentation
bin1000011001010…
…10000001000000
311220112001020212
410030222001000
5121012123223
610553253252
71513421423
oct414520100
9156461225
1070426688
1136832682
121b704228
131178aac7
1494d39ba
1562b2278
hex432a040

70426688 has 28 divisors (see below), whose sum is σ = 143534892. Its totient is φ = 34260480.

The previous prime is 70426687. The next prime is 70426709. The reversal of 70426688 is 88662407.

It can be written as a sum of positive squares in 2 ways, for example, as 62853184 + 7573504 = 7928^2 + 2752^2 .

It is not an unprimeable number, because it can be changed into a prime (70426687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12503 + ... + 17238.

Almost surely, 270426688 is an apocalyptic number.

It is an amenable number.

70426688 is an abundant number, since it is smaller than the sum of its proper divisors (73108204).

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

70426688 is a wasteful number, since it uses less digits than its factorization.

70426688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29790 (or 29780 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 70426688 is about 8392.0610102644. The cubic root of 70426688 is about 412.9642166583.

The spelling of 70426688 in words is "seventy million, four hundred twenty-six thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 32 37 64 74 148 296 592 1184 2368 29741 59482 118964 237928 475856 951712 1100417 1903424 2200834 4401668 8803336 17606672 35213344 70426688