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12700019466 = 232705556637
BaseRepresentation
bin10111101001111101…
…01110101100001010
31012210002022211112100
423310332232230022
5202002201110331
65500113254230
7626501245551
oct136476565412
935702284470
1012700019466
115427914662
122565264376
1312751aca24
1488699cd98
154e4e48ae6
hex2f4faeb0a

12700019466 has 12 divisors (see below), whose sum is σ = 27516708882. Its totient is φ = 4233339816.

The previous prime is 12700019459. The next prime is 12700019483. The reversal of 12700019466 is 66491000721.

It can be written as a sum of positive squares in only one way, i.e., 12504830625 + 195188841 = 111825^2 + 13971^2 .

It is a super-2 number, since 2×127000194662 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12700019466.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352778301 + ... + 352778336.

Almost surely, 212700019466 is an apocalyptic number.

12700019466 is an abundant number, since it is smaller than the sum of its proper divisors (14816689416).

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

12700019466 is a wasteful number, since it uses less digits than its factorization.

12700019466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705556645 (or 705556642 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 12700019466 in words is "twelve billion, seven hundred million, nineteen thousand, four hundred sixty-six".

Divisors: 1 2 3 6 9 18 705556637 1411113274 2116669911 4233339822 6350009733 12700019466