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27924939505 = 530718192143
BaseRepresentation
bin11010000000011101…
…001100001011110001
32200002010200220111201
4122000131030023301
5424142241031010
620454544211201
72006002032541
oct320035141361
980063626451
1027924939505
111092a99a401
1254b4009b01
1328304c9a58
1414cca11321
15ad688b23a
hex68074c2f1

27924939505 has 8 divisors (see below), whose sum is σ = 33619082112. Its totient is φ = 22267181808.

The previous prime is 27924939499. The next prime is 27924939509. The reversal of 27924939505 is 50593942972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27924939505 - 217 = 27924808433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27924939509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9094537 + ... + 9097606.

It is an arithmetic number, because the mean of its divisors is an integer number (4202385264).

Almost surely, 227924939505 is an apocalyptic number.

It is an amenable number.

27924939505 is a deficient number, since it is larger than the sum of its proper divisors (5694142607).

27924939505 is a wasteful number, since it uses less digits than its factorization.

27924939505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18192455.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 27924939505 in words is "twenty-seven billion, nine hundred twenty-four million, nine hundred thirty-nine thousand, five hundred five".

Divisors: 1 5 307 1535 18192143 90960715 5584987901 27924939505