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12700801 = 33138371
BaseRepresentation
bin110000011100…
…110010000001
3212220021020001
4300130302001
511222411201
61132120001
7212645401
oct60346201
925807201
1012700801
117195333
124306001
132828c89
141988801
1511ad301
hexc1cc81

12700801 has 4 divisors (see below), whose sum is σ = 12739504. Its totient is φ = 12662100.

The previous prime is 12700799. The next prime is 12700817. The reversal of 12700801 is 10800721.

12700801 = 62 + 72 + ... + 3362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12700801 - 21 = 12700799 is a prime.

It is a super-2 number, since 2×127008012 = 322620692083202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12700001) 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, 18855 + ... + 19516.

It is an arithmetic number, because the mean of its divisors is an integer number (3184876).

Almost surely, 212700801 is an apocalyptic number.

It is an amenable number.

12700801 is a deficient number, since it is larger than the sum of its proper divisors (38703).

12700801 is an equidigital number, since it uses as much as digits as its factorization.

12700801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38702.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 12700801 is about 3563.8183174792. The cubic root of 12700801 is about 233.3155603243.

The spelling of 12700801 in words is "twelve million, seven hundred thousand, eight hundred one".

Divisors: 1 331 38371 12700801