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69913056 = 253728261
BaseRepresentation
bin1000010101011…
…00100111100000
311212112221200110
410022230213200
5120344204211
610534251320
71506152103
oct412544740
9155487613
1069913056
1136511794
121b4b6b40
131163b095
1493dc73a
15620eea6
hex42ac9e0

69913056 has 24 divisors (see below), whose sum is σ = 183522024. Its totient is φ = 23304320.

The previous prime is 69913043. The next prime is 69913057. The reversal of 69913056 is 65031996.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69913057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364035 + ... + 364226.

It is an arithmetic number, because the mean of its divisors is an integer number (7646751).

Almost surely, 269913056 is an apocalyptic number.

It is an amenable number.

69913056 is an abundant number, since it is smaller than the sum of its proper divisors (113608968).

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

69913056 is a wasteful number, since it uses less digits than its factorization.

69913056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728274 (or 728266 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 69913056 is about 8361.4027531270. The cubic root of 69913056 is about 411.9578302269.

The spelling of 69913056 in words is "sixty-nine million, nine hundred thirteen thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 728261 1456522 2184783 2913044 4369566 5826088 8739132 11652176 17478264 23304352 34956528 69913056