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69427930 = 251113471033
BaseRepresentation
bin1000010001101…
…10001011011010
311211122022012211
410020312023122
5120233143210
610520025334
71502061535
oct410661332
9154568184
1069427930
1136210260
121b30224a
13114cb320
149313a1c
15616638a
hex42362da

69427930 has 64 divisors (see below), whose sum is σ = 150087168. Its totient is φ = 22786560.

The previous prime is 69427909. The next prime is 69427931. The reversal of 69427930 is 3972496.

It is not an unprimeable number, because it can be changed into a prime (69427931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66694 + ... + 67726.

It is an arithmetic number, because the mean of its divisors is an integer number (2345112).

Almost surely, 269427930 is an apocalyptic number.

69427930 is an abundant number, since it is smaller than the sum of its proper divisors (80659238).

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

69427930 is a wasteful number, since it uses less digits than its factorization.

69427930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 69427930 is about 8332.3424077507. The cubic root of 69427930 is about 411.0027606408.

The spelling of 69427930 in words is "sixty-nine million, four hundred twenty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 47 55 65 94 110 130 143 235 286 470 517 611 715 1033 1034 1222 1430 2066 2585 3055 5165 5170 6110 6721 10330 11363 13429 13442 22726 26858 33605 48551 56815 67145 67210 97102 113630 134290 147719 242755 295438 485510 534061 631163 738595 1068122 1262326 1477190 2670305 3155815 5340610 6311630 6942793 13885586 34713965 69427930