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70756130 = 257075613
BaseRepresentation
bin1000011011110…
…10011100100010
311221010210011102
410031322130202
5121103144010
611004314402
71516263044
oct415723442
9157123142
1070756130
1136a38145
121b842a02
1311874a43
14957ba94
156329ba5
hex437a722

70756130 has 8 divisors (see below), whose sum is σ = 127361052. Its totient is φ = 28302448.

The previous prime is 70756121. The next prime is 70756187. The reversal of 70756130 is 3165707.

It can be written as a sum of positive squares in 2 ways, for example, as 60637369 + 10118761 = 7787^2 + 3181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 70756093 and 70756102.

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, 3537797 + ... + 3537816.

Almost surely, 270756130 is an apocalyptic number.

70756130 is a deficient number, since it is larger than the sum of its proper divisors (56604922).

70756130 is a wasteful number, since it uses less digits than its factorization.

70756130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075620.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 70756130 is about 8411.6663034146. Note that the first 3 decimals coincide. The cubic root of 70756130 is about 413.6071366277.

The spelling of 70756130 in words is "seventy million, seven hundred fifty-six thousand, one hundred thirty".

Divisors: 1 2 5 10 7075613 14151226 35378065 70756130