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12086701921 = 73974349299
BaseRepresentation
bin10110100000110110…
…00110111101100001
31011012100021002000201
423100123012331201
5144223143430141
65315203545201
7605343162010
oct132033067541
934170232021
1012086701921
1151426a0058
12241398b201
1311a8100538
1482934aa77
154ab19a031
hex2d06c6f61

12086701921 has 8 divisors (see below), whose sum is σ = 13848171200. Its totient is φ = 10333932048.

The previous prime is 12086701909. The next prime is 12086701951. The reversal of 12086701921 is 12910768021.

12086701921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12086701921 - 25 = 12086701889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12086701951) by changing a digit.

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, 2171871 + ... + 2177428.

It is an arithmetic number, because the mean of its divisors is an integer number (1731021400).

Almost surely, 212086701921 is an apocalyptic number.

It is an amenable number.

12086701921 is a deficient number, since it is larger than the sum of its proper divisors (1761469279).

12086701921 is an equidigital number, since it uses as much as digits as its factorization.

12086701921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349703.

The product of its (nonzero) digits is 12096, while the sum is 37.

The spelling of 12086701921 in words is "twelve billion, eighty-six million, seven hundred one thousand, nine hundred twenty-one".

Divisors: 1 7 397 2779 4349299 30445093 1726671703 12086701921