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12740332388 = 227617459211
BaseRepresentation
bin10111101110110001…
…00000101101100100
31012212220011221110112
423313120200231210
5202043011114023
65504113312152
7630501016130
oct136730405544
935786157415
1012740332388
115448649323
122576865658
131280655b24
1488c0943c0
154e875d478
hex2f7620b64

12740332388 has 24 divisors (see below), whose sum is σ = 25898384064. Its totient is φ = 5370631200.

The previous prime is 12740332361. The next prime is 12740332421. The reversal of 12740332388 is 88323304721.

12740332388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727898 + ... + 3731313.

It is an arithmetic number, because the mean of its divisors is an integer number (1079099336).

Almost surely, 212740332388 is an apocalyptic number.

It is an amenable number.

12740332388 is an abundant number, since it is smaller than the sum of its proper divisors (13158051676).

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

12740332388 is a wasteful number, since it uses less digits than its factorization.

12740332388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459283 (or 7459281 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 12740332388 in words is "twelve billion, seven hundred forty million, three hundred thirty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 7459211 14918422 29836844 52214477 104428954 208857908 455011871 910023742 1820047484 3185083097 6370166194 12740332388