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70916705 = 5231813407
BaseRepresentation
bin1000011101000…
…01101001100001
311221102221102122
410032201221201
5121123313310
611011554025
71520532146
oct416415141
9157387378
1070916705
1137037852
121b8bb915
13118ccb62
1495c03cd
15635c555
hex43a1a61

70916705 has 16 divisors (see below), whose sum is σ = 89316864. Its totient is φ = 53951040.

The previous prime is 70916701. The next prime is 70916731. The reversal of 70916705 is 50761907.

It is not a de Polignac number, because 70916705 - 22 = 70916701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70916701) by changing a digit.

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, 19112 + ... + 22518.

It is an arithmetic number, because the mean of its divisors is an integer number (5582304).

Almost surely, 270916705 is an apocalyptic number.

It is an amenable number.

70916705 is a deficient number, since it is larger than the sum of its proper divisors (18400159).

70916705 is a wasteful number, since it uses less digits than its factorization.

70916705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 70916705 is about 8421.2056737738. The cubic root of 70916705 is about 413.9197822749.

The spelling of 70916705 in words is "seventy million, nine hundred sixteen thousand, seven hundred five".

Divisors: 1 5 23 115 181 905 3407 4163 17035 20815 78361 391805 616667 3083335 14183341 70916705