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12920943706 = 211587315623
BaseRepresentation
bin11000000100010010…
…11111010001011010
31020100111000221121121
430002021133101122
5202430230144311
65534044355454
7635123131546
oct140211372132
936314027547
1012920943706
115530599280
122607245b8a
1312abbb2028
148a806aa26
15509537b71
hex30225f45a

12920943706 has 8 divisors (see below), whose sum is σ = 21143362464. Its totient is φ = 5873156220.

The previous prime is 12920943701. The next prime is 12920943713. The reversal of 12920943706 is 60734902921.

12920943706 is digitally balanced in base 5, 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 not an unprimeable number, because it can be changed into a prime (12920943701) 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, 293657790 + ... + 293657833.

It is an arithmetic number, because the mean of its divisors is an integer number (2642920308).

Almost surely, 212920943706 is an apocalyptic number.

12920943706 is a deficient number, since it is larger than the sum of its proper divisors (8222418758).

12920943706 is a wasteful number, since it uses less digits than its factorization.

12920943706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587315636.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 12920943706 in words is "twelve billion, nine hundred twenty million, nine hundred forty-three thousand, seven hundred six".

Divisors: 1 2 11 22 587315623 1174631246 6460471853 12920943706