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27939245955 = 352779967003
BaseRepresentation
bin11010000001010011…
…110000111110000011
32200010010121202021020
4122001103300332003
5424204421332310
620500215000523
72006234446365
oct320123607603
980103552236
1027939245955
1110937a81015
1254b8969143
1328334687ca
1414d0896d35
15ad7c65170
hex6814f0f83

27939245955 has 16 divisors (see below), whose sum is σ = 44705068800. Its totient is φ = 14900172768.

The previous prime is 27939245909. The next prime is 27939245963. The reversal of 27939245955 is 55954293972.

It is not a de Polignac number, because 27939245955 - 29 = 27939245443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383484 + ... + 450486.

It is an arithmetic number, because the mean of its divisors is an integer number (2794066800).

Almost surely, 227939245955 is an apocalyptic number.

27939245955 is a deficient number, since it is larger than the sum of its proper divisors (16765822845).

27939245955 is a wasteful number, since it uses less digits than its factorization.

27939245955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94810.

The product of its digits is 30618000, while the sum is 60.

The spelling of 27939245955 in words is "twenty-seven billion, nine hundred thirty-nine million, two hundred forty-five thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 27799 67003 83397 138995 201009 335015 416985 1005045 1862616397 5587849191 9313081985 27939245955