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12890627530 = 2511194960127
BaseRepresentation
bin11000000000101011…
…10101110111001010
31020021100222201122021
430000111311313022
5202400000040110
65531042515054
7634304345314
oct140025656712
936240881567
1012890627530
115515472290
1225b9065a8a
1312a5829171
148a40187b4
15506a4a2da
hex300575dca

12890627530 has 32 divisors (see below), whose sum is σ = 25325913600. Its totient is φ = 4685017920.

The previous prime is 12890627527. The next prime is 12890627531. The reversal of 12890627530 is 3572609821.

It is not an unprimeable number, because it can be changed into a prime (12890627531) 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, 184327 + ... + 244453.

It is an arithmetic number, because the mean of its divisors is an integer number (791434800).

Almost surely, 212890627530 is an apocalyptic number.

12890627530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12890627530 is a deficient number, since it is larger than the sum of its proper divisors (12435286070).

12890627530 is a wasteful number, since it uses less digits than its factorization.

12890627530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62094.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 12890627530 in words is "twelve billion, eight hundred ninety million, six hundred twenty-seven thousand, five hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1949 3898 9745 19490 21439 42878 60127 107195 120254 214390 300635 601270 661397 1322794 3306985 6613970 117187523 234375046 585937615 1171875230 1289062753 2578125506 6445313765 12890627530