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27125883421 = 7131409211559
BaseRepresentation
bin11001010000110101…
…000010001000011101
32121000110010122121221
4121100311002020131
5421023211232141
620243401453341
71650130130140
oct312065021035
977013118557
1027125883421
111055a94377a
1253104a1251
132733ab76c0
141454850057
15a8b64dbd1
hex650d4221d

27125883421 has 16 divisors (see below), whose sum is σ = 33409555200. Its totient is φ = 21446903808.

The previous prime is 27125883419. The next prime is 27125883431. The reversal of 27125883421 is 12438852172.

It is a cyclic number.

It is not a de Polignac number, because 27125883421 - 21 = 27125883419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27125883431) 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, 22440 + ... + 233998.

It is an arithmetic number, because the mean of its divisors is an integer number (2088097200).

Almost surely, 227125883421 is an apocalyptic number.

It is an amenable number.

27125883421 is a deficient number, since it is larger than the sum of its proper divisors (6283671779).

27125883421 is a wasteful number, since it uses less digits than its factorization.

27125883421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212988.

The product of its digits is 215040, while the sum is 43.

The spelling of 27125883421 in words is "twenty-seven billion, one hundred twenty-five million, eight hundred eighty-three thousand, four hundred twenty-one".

Divisors: 1 7 13 91 1409 9863 18317 128219 211559 1480913 2750267 19251869 298086631 2086606417 3875126203 27125883421