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27828948375 = 325397255019
BaseRepresentation
bin11001111010101111…
…000000110110010111
32122211110002001102200
4121322233000312113
5423443202322000
620441234535543
72003425105164
oct317257006627
978743061380
1027828948375
1110890796898
125487a375b3
13281665ab77
1414bdd8506b
15acd229500
hex67abc0d97

27828948375 has 48 divisors (see below), whose sum is σ = 50683694880. Its totient is φ = 14689036800.

The previous prime is 27828948373. The next prime is 27828948379. The reversal of 27828948375 is 57384982872.

27828948375 is a `hidden beast` number, since 2 + 7 + 8 + 2 + 89 + 483 + 75 = 666.

It is not a de Polignac number, because 27828948375 - 21 = 27828948373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828948373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18385 + ... + 236634.

It is an arithmetic number, because the mean of its divisors is an integer number (1055910310).

Almost surely, 227828948375 is an apocalyptic number.

27828948375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27828948375 is a deficient number, since it is larger than the sum of its proper divisors (22854746505).

27828948375 is a wasteful number, since it uses less digits than its factorization.

27828948375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255137 (or 255124 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 27828948375 in words is "twenty-seven billion, eight hundred twenty-eight million, nine hundred forty-eight thousand, three hundred seventy-five".

Divisors: 1 3 5 9 15 25 45 75 97 125 225 291 375 485 873 1125 1455 2425 4365 7275 12125 21825 36375 109125 255019 765057 1275095 2295171 3825285 6375475 11475855 19126425 24736843 31877375 57379275 74210529 95632125 123684215 222631587 286896375 371052645 618421075 1113157935 1855263225 3092105375 5565789675 9276316125 27828948375