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12857887274330 = 257832213061493
BaseRepresentation
bin1011101100011011010111…
…0011011011010101011010
31200112012110021100001202102
42323012311303123111122
53141130423120234310
643202455403403402
72464644301354130
oct273066563332532
950465407301672
1012857887274330
114107aaa18658a
121537b40523562
137236554a11b7
14326479d97750
151746e32378a5
hexbb1b5cdb55a

12857887274330 has 32 divisors (see below), whose sum is σ = 26769191831424. Its totient is φ = 4355305016256.

The previous prime is 12857887274329. The next prime is 12857887274339. The reversal of 12857887274330 is 3347278875821.

It is not an unprimeable number, because it can be changed into a prime (12857887274339) 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, 1106524937 + ... + 1106536556.

It is an arithmetic number, because the mean of its divisors is an integer number (836537244732).

Almost surely, 212857887274330 is an apocalyptic number.

12857887274330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12857887274330 is an abundant number, since it is smaller than the sum of its proper divisors (13911304557094).

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

12857887274330 is a wasteful number, since it uses less digits than its factorization.

12857887274330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213061590.

The product of its (nonzero) digits is 126443520, while the sum is 65.

The spelling of 12857887274330 in words is "twelve trillion, eight hundred fifty-seven billion, eight hundred eighty-seven million, two hundred seventy-four thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 5810 2213061493 4426122986 11065307465 15491430451 22130614930 30982860902 77457152255 154914304510 183684103919 367368207838 918420519595 1285788727433 1836841039190 2571577454866 6428943637165 12857887274330