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70479613 = 23792491
BaseRepresentation
bin1000011001101…
…10111011111101
311220121201212001
410030312323331
5121020321423
610554342301
71514031631
oct414667375
9156551761
1070479613
1136869416
121b72a991
13117a8c19
149508dc1
1562c2cad
hex4336efd

70479613 has 12 divisors (see below), whose sum is σ = 74638368. Its totient is φ = 66426360.

The previous prime is 70479601. The next prime is 70479653. The reversal of 70479613 is 31697407.

It is a de Polignac number, because none of the positive numbers 2k-70479613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70479653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143298 + ... + 143788.

It is an arithmetic number, because the mean of its divisors is an integer number (6219864).

Almost surely, 270479613 is an apocalyptic number.

It is an amenable number.

70479613 is a deficient number, since it is larger than the sum of its proper divisors (4158755).

70479613 is an equidigital number, since it uses as much as digits as its factorization.

70479613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 70479613 is about 8395.2136959103. The cubic root of 70479613 is about 413.0676370102.

The spelling of 70479613 in words is "seventy million, four hundred seventy-nine thousand, six hundred thirteen".

Divisors: 1 23 79 491 1817 6241 11293 38789 143543 892147 3064331 70479613