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70391130 = 2355939769
BaseRepresentation
bin1000011001000…
…01010101011010
311220110020110220
410030201111122
5121010004010
610552420510
71513212645
oct414412532
9156406426
1070391130
1136808997
121b6a7736
1311777874
1494c4a5c
1562a6970
hex432155a

70391130 has 32 divisors (see below), whose sum is σ = 171806400. Its totient is φ = 18452352.

The previous prime is 70391119. The next prime is 70391179. The reversal of 70391130 is 3119307.

It is a super-2 number, since 2×703911302 = 9909822365353800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70391130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18115 + ... + 21654.

It is an arithmetic number, because the mean of its divisors is an integer number (5368950).

Almost surely, 270391130 is an apocalyptic number.

70391130 is an abundant number, since it is smaller than the sum of its proper divisors (101415270).

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

70391130 is a wasteful number, since it uses less digits than its factorization.

70391130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39838.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 70391130 is about 8389.9421928879. The cubic root of 70391130 is about 412.8947039303.

The spelling of 70391130 in words is "seventy million, three hundred ninety-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 39769 79538 119307 198845 238614 397690 596535 1193070 2346371 4692742 7039113 11731855 14078226 23463710 35195565 70391130