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14997278564 = 2231311978657
BaseRepresentation
bin11011111011110100…
…00100111101100100
31102201012000200120122
431331322010331210
5221203300403224
610520055421112
71040434523132
oct157572047544
942635020518
1014997278564
1163a66333a4
122aa6684798
131550105438
14a23b16752
155cb97815e
hex37de84f64

14997278564 has 12 divisors (see below), whose sum is σ = 26329090284. Its totient is φ = 7474681344.

The previous prime is 14997278539. The next prime is 14997278567. The reversal of 14997278564 is 46587279941.

It can be written as a sum of positive squares in 2 ways, for example, as 2046838564 + 12950440000 = 45242^2 + 113800^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14997278497 and 14997278506.

It is not an unprimeable number, because it can be changed into a prime (14997278567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5988077 + ... + 5990580.

It is an arithmetic number, because the mean of its divisors is an integer number (2194090857).

Almost surely, 214997278564 is an apocalyptic number.

It is an amenable number.

14997278564 is a deficient number, since it is larger than the sum of its proper divisors (11331811720).

14997278564 is a wasteful number, since it uses less digits than its factorization.

14997278564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978974 (or 11978972 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 14997278564 in words is "fourteen billion, nine hundred ninety-seven million, two hundred seventy-eight thousand, five hundred sixty-four".

Divisors: 1 2 4 313 626 1252 11978657 23957314 47914628 3749319641 7498639282 14997278564