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12394081797 = 35970023061
BaseRepresentation
bin10111000101011111…
…01010111000000101
31011222202122120221120
423202233222320011
5200340341104142
65405504104153
7616064646156
oct134257527005
934882576846
1012394081797
115290155109
12249a905059
1312269b3416
148580c192d
154c81657ec
hex2e2beae05

12394081797 has 8 divisors (see below), whose sum is σ = 16805534880. Its totient is φ = 8122674960.

The previous prime is 12394081789. The next prime is 12394081801. The reversal of 12394081797 is 79718049321.

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

It is not a de Polignac number, because 12394081797 - 23 = 12394081789 is a prime.

It is a super-2 number, since 2×123940817972 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394082797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35011354 + ... + 35011707.

It is an arithmetic number, because the mean of its divisors is an integer number (2100691860).

Almost surely, 212394081797 is an apocalyptic number.

It is an amenable number.

12394081797 is a deficient number, since it is larger than the sum of its proper divisors (4411453083).

12394081797 is an equidigital number, since it uses as much as digits as its factorization.

12394081797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70023123.

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 12394081797 in words is "twelve billion, three hundred ninety-four million, eighty-one thousand, seven hundred ninety-seven".

Divisors: 1 3 59 177 70023061 210069183 4131360599 12394081797