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12022009979 = 75929108983
BaseRepresentation
bin10110011001001000…
…10101000001111011
31011000211112101100212
423030210111001323
5144110113304404
65304533221335
7603626253530
oct131444250173
934024471325
1012022009979
11510a125041
1223b619184b
13119789ca95
1482090ad87
154a566c06e
hex2cc91507b

12022009979 has 8 divisors (see below), whose sum is σ = 13972312320. Its totient is φ = 10129925736.

The previous prime is 12022009933. The next prime is 12022010023. The reversal of 12022009979 is 97990022021.

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

It is not a de Polignac number, because 12022009979 - 228 = 11753574523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022003979) 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, 14554079 + ... + 14554904.

It is an arithmetic number, because the mean of its divisors is an integer number (1746539040).

Almost surely, 212022009979 is an apocalyptic number.

12022009979 is a deficient number, since it is larger than the sum of its proper divisors (1950302341).

12022009979 is an equidigital number, since it uses as much as digits as its factorization.

12022009979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29109049.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 12022009979 in words is "twelve billion, twenty-two million, nine thousand, nine hundred seventy-nine".

Divisors: 1 7 59 413 29108983 203762881 1717429997 12022009979