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70029279 = 34311672
BaseRepresentation
bin1000010110010…
…00111111011111
311212202212010000
410023020333133
5120411414104
610540545343
71510144665
oct413107737
9155685100
1070029279
1136591041
121b552253
131167bc58
14942cc35
156234639
hex42c8fdf

70029279 has 30 divisors (see below), whose sum is σ = 108636704. Its totient is φ = 44909640.

The previous prime is 70029263. The next prime is 70029301. The reversal of 70029279 is 97292007.

It is not a de Polignac number, because 70029279 - 24 = 70029263 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 (70022279) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 419254 + ... + 419420.

Almost surely, 270029279 is an apocalyptic number.

70029279 is a deficient number, since it is larger than the sum of its proper divisors (38607425).

70029279 is an equidigital number, since it uses as much as digits as its factorization.

70029279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 70029279 is about 8368.3498373335. The cubic root of 70029279 is about 412.1859825010.

The spelling of 70029279 in words is "seventy million, twenty-nine thousand, two hundred seventy-nine".

Divisors: 1 3 9 27 31 81 93 167 279 501 837 1503 2511 4509 5177 13527 15531 27889 46593 83667 139779 251001 419337 753003 864559 2259009 2593677 7781031 23343093 70029279