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69894086272 = 271274299587
BaseRepresentation
bin100000100011000000…
…0110001111010000000
320200102001001110112221
41001012000301322000
52121120341230042
652035304500424
75023016634163
oct1010600617200
9220361043487
1069894086272
112770743156a
121166747a714
13678b5131ca
143550925ada
151c4118dd67
hex1046031e80

69894086272 has 32 divisors (see below), whose sum is σ = 140338552320. Its totient is φ = 34671861504.

The previous prime is 69894086257. The next prime is 69894086309. The reversal of 69894086272 is 27268049896.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 69894086272.

It is an unprimeable number.

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, 2133538 + ... + 2166049.

It is an arithmetic number, because the mean of its divisors is an integer number (4385579760).

Almost surely, 269894086272 is an apocalyptic number.

It is an amenable number.

69894086272 is an abundant number, since it is smaller than the sum of its proper divisors (70444466048).

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

69894086272 is a wasteful number, since it uses less digits than its factorization.

69894086272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299728 (or 4299716 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 69894086272 in words is "sixty-nine billion, eight hundred ninety-four million, eighty-six thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 127 128 254 508 1016 2032 4064 8128 16256 4299587 8599174 17198348 34396696 68793392 137586784 275173568 546047549 550347136 1092095098 2184190196 4368380392 8736760784 17473521568 34947043136 69894086272