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12972714578 = 283163479441
BaseRepresentation
bin11000001010011101…
…11110101001010010
31020111002110011220022
430011032332221102
5203032003331303
65543134143442
7636322153205
oct140516765122
936432404808
1012972714578
11555783951a
122620651b82
1312b983a495
148b0ca593c
1550dd62438
hex3053bea52

12972714578 has 16 divisors (see below), whose sum is σ = 19814378976. Its totient is φ = 6368880960.

The previous prime is 12972714563. The next prime is 12972714589. The reversal of 12972714578 is 87541727921.

12972714578 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, 212663 + ... + 266778.

It is an arithmetic number, because the mean of its divisors is an integer number (1238398686).

Almost surely, 212972714578 is an apocalyptic number.

12972714578 is a deficient number, since it is larger than the sum of its proper divisors (6841664398).

12972714578 is a wasteful number, since it uses less digits than its factorization.

12972714578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479689.

The product of its digits is 1975680, while the sum is 53.

The spelling of 12972714578 in words is "twelve billion, nine hundred seventy-two million, seven hundred fourteen thousand, five hundred seventy-eight".

Divisors: 1 2 83 163 166 326 13529 27058 479441 958882 39793603 78148883 79587206 156297766 6486357289 12972714578