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69979044 = 22325722691
BaseRepresentation
bin1000010101111…
…00101110100100
311212200022012110
410022330232210
5120403312134
610535521020
71506545352
oct412745644
9155608173
1069979044
1136557323
121b529170
1311662125
1494187d2
1562247e9
hex42bcba4

69979044 has 24 divisors (see below), whose sum is σ = 163927008. Its totient is φ = 23234560.

The previous prime is 69979031. The next prime is 69979067. The reversal of 69979044 is 44097996.

It is a junction number, because it is equal to n+sod(n) for n = 69978984 and 69979002.

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 7 ways as a sum of consecutive naturals, for example, 8262 + ... + 14429.

It is an arithmetic number, because the mean of its divisors is an integer number (6830292).

Almost surely, 269979044 is an apocalyptic number.

It is an amenable number.

69979044 is an abundant number, since it is smaller than the sum of its proper divisors (93947964).

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

69979044 is a wasteful number, since it uses less digits than its factorization.

69979044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22955 (or 22953 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 69979044 is about 8365.3478110596. The cubic root of 69979044 is about 412.0873993739.

The spelling of 69979044 in words is "sixty-nine million, nine hundred seventy-nine thousand, forty-four".

Divisors: 1 2 3 4 6 12 257 514 771 1028 1542 3084 22691 45382 68073 90764 136146 272292 5831587 11663174 17494761 23326348 34989522 69979044