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12497970667 = 7132337161387
BaseRepresentation
bin10111010001110111…
…11110010111101011
31012021000010200200111
423220323332113223
5201043440030132
65424054515151
7621465666160
oct135073762753
935230120614
1012497970667
115333862386
122509665ab7
131242389020
14867c06067
154d2337647
hex2e8efe5eb

12497970667 has 32 divisors (see below), whose sum is σ = 16484815872. Its totient is φ = 9202875264.

The previous prime is 12497970659. The next prime is 12497970671. The reversal of 12497970667 is 76607979421.

It is a cyclic number.

It is not a de Polignac number, because 12497970667 - 23 = 12497970659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12497970677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3253 + ... + 158134.

It is an arithmetic number, because the mean of its divisors is an integer number (515150496).

Almost surely, 212497970667 is an apocalyptic number.

12497970667 is a deficient number, since it is larger than the sum of its proper divisors (3986845205).

12497970667 is a wasteful number, since it uses less digits than its factorization.

12497970667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161467.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 12497970667 in words is "twelve billion, four hundred ninety-seven million, nine hundred seventy thousand, six hundred sixty-seven".

Divisors: 1 7 13 23 37 91 161 259 299 481 851 2093 3367 5957 11063 77441 161387 1129709 2098031 3711901 5971319 14686217 25983307 41799233 48254713 77627147 137340337 337782991 543390029 961382359 1785424381 12497970667