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12740125120 = 26539812891
BaseRepresentation
bin10111101110101111…
…01110000111000000
31012212212210102010221
423313113232013000
5202042433000440
65504105032424
7630466163632
oct136727560700
935785712127
1012740125120
115448517628
122576785714
1312805b2698
1488c03ca52
154e871bd4a
hex2f75ee1c0

12740125120 has 28 divisors (see below), whose sum is σ = 30337423704. Its totient is φ = 5096049920.

The previous prime is 12740125103. The next prime is 12740125121. The reversal of 12740125120 is 2152104721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740125121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19906126 + ... + 19906765.

It is an arithmetic number, because the mean of its divisors is an integer number (1083479418).

Almost surely, 212740125120 is an apocalyptic number.

12740125120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740125120 is an abundant number, since it is smaller than the sum of its proper divisors (17597298584).

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

12740125120 is an equidigital number, since it uses as much as digits as its factorization.

12740125120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39812908 (or 39812898 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 12740125120 its reverse (2152104721), we get a palindrome (14892229841).

The spelling of 12740125120 in words is "twelve billion, seven hundred forty million, one hundred twenty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 39812891 79625782 159251564 199064455 318503128 398128910 637006256 796257820 1274012512 1592515640 2548025024 3185031280 6370062560 12740125120