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27869925984 = 253733976873
BaseRepresentation
bin11001111101001011…
…010101001001100000
32122221022011221010220
4121331023111021200
5424034200112414
620445301123040
72004433314345
oct317513251140
978838157126
1027869925984
111090193498a
1254996b9480
132821ca7684
1414c55b07cc
15ad1b20ca9
hex67d2d5260

27869925984 has 48 divisors (see below), whose sum is σ = 74160746352. Its totient is φ = 9162713088.

The previous prime is 27869925977. The next prime is 27869926027. The reversal of 27869925984 is 48952996872.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981429 + ... + 1995444.

It is an arithmetic number, because the mean of its divisors is an integer number (1545015549).

Almost surely, 227869925984 is an apocalyptic number.

27869925984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27869925984 is an abundant number, since it is smaller than the sum of its proper divisors (46290820368).

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

27869925984 is a wasteful number, since it uses less digits than its factorization.

27869925984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976959 (or 3976951 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 69.

The spelling of 27869925984 in words is "twenty-seven billion, eight hundred sixty-nine million, nine hundred twenty-five thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 73 96 146 219 292 438 584 876 1168 1752 2336 3504 7008 3976873 7953746 11930619 15907492 23861238 31814984 47722476 63629968 95444952 127259936 190889904 290311729 381779808 580623458 870935187 1161246916 1741870374 2322493832 3483740748 4644987664 6967481496 9289975328 13934962992 27869925984