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69985070 = 2525932699
BaseRepresentation
bin1000010101111…
…10001100101110
311212200121110122
410022332030232
5120404010240
610540004542
71506602051
oct412761456
9155617418
1069985070
1136560901
121b530752
1311664aac
14941aa98
1562264b5
hex42be32e

69985070 has 16 divisors (see below), whose sum is σ = 126068400. Its totient is φ = 27972864.

The previous prime is 69985063. The next prime is 69985079. The reversal of 69985070 is 7058996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69985079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24581 + ... + 27279.

It is an arithmetic number, because the mean of its divisors is an integer number (7879275).

Almost surely, 269985070 is an apocalyptic number.

69985070 is a deficient number, since it is larger than the sum of its proper divisors (56083330).

69985070 is a wasteful number, since it uses less digits than its factorization.

69985070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 69985070 is about 8365.7079796034. The cubic root of 69985070 is about 412.0992275215.

The spelling of 69985070 in words is "sixty-nine million, nine hundred eighty-five thousand, seventy".

Divisors: 1 2 5 10 2593 2699 5186 5398 12965 13495 25930 26990 6998507 13997014 34992535 69985070