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11927085640 = 235439679219
BaseRepresentation
bin10110001101110100…
…01110001001001000
31010210012220201122121
423012322032021020
5143411313220030
65251302501024
7601364361301
oct130672161110
933705821577
1011927085640
11507058aa78
12238a434774
131181015632
1481207b7a8
1549c16b47a
hex2c6e8e248

11927085640 has 32 divisors (see below), whose sum is σ = 26897112000. Its totient is φ = 4759959744.

The previous prime is 11927085637. The next prime is 11927085683. The reversal of 11927085640 is 4658072911.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322050 + ... + 357169.

It is an arithmetic number, because the mean of its divisors is an integer number (840534750).

Almost surely, 211927085640 is an apocalyptic number.

11927085640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11927085640 is an abundant number, since it is smaller than the sum of its proper divisors (14970026360).

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

11927085640 is a wasteful number, since it uses less digits than its factorization.

11927085640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679669 (or 679665 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 11927085640 in words is "eleven billion, nine hundred twenty-seven million, eighty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 439 878 1756 2195 3512 4390 8780 17560 679219 1358438 2716876 3396095 5433752 6792190 13584380 27168760 298177141 596354282 1192708564 1490885705 2385417128 2981771410 5963542820 11927085640