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69744012 = 22313647691
BaseRepresentation
bin1000010100000…
…11010110001100
311212020100210120
410022003112030
5120323302022
610530504540
71504546212
oct412032614
9155210716
1069744012
1136406788
121b435150
13115ac160
149396cb2
1561c9d5c
hex428358c

69744012 has 48 divisors (see below), whose sum is σ = 175779072. Its totient is φ = 21395520.

The previous prime is 69743983. The next prime is 69744019. The reversal of 69744012 is 21044796.

It is a happy number.

It is a super-2 number, since 2×697440122 = 9728454419712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69744019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100587 + ... + 101277.

It is an arithmetic number, because the mean of its divisors is an integer number (3662064).

Almost surely, 269744012 is an apocalyptic number.

It is an amenable number.

69744012 is an abundant number, since it is smaller than the sum of its proper divisors (106035060).

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

69744012 is a wasteful number, since it uses less digits than its factorization.

69744012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 69744012 is about 8351.2880443678. The cubic root of 69744012 is about 411.6255355833.

The spelling of 69744012 in words is "sixty-nine million, seven hundred forty-four thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 647 691 1294 1382 1941 2073 2588 2764 3882 4146 7764 8292 8411 8983 16822 17966 25233 26949 33644 35932 50466 53898 100932 107796 447077 894154 1341231 1788308 2682462 5364924 5812001 11624002 17436003 23248004 34872006 69744012