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12320979 = 311373363
BaseRepresentation
bin101111000000…
…000011010011
3212011222012120
4233000003103
511123232404
61120025323
7206504136
oct57000323
925158176
1012320979
116a55a30
124162243
132725128
1418ca21d
1511359d9
hexbc00d3

12320979 has 8 divisors (see below), whose sum is σ = 17921472. Its totient is φ = 7467240.

The previous prime is 12320977. The next prime is 12320983. The reversal of 12320979 is 97902321.

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

It is not a de Polignac number, because 12320979 - 21 = 12320977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 373363 = 12320979 / (1 + 2 + 3 + 2 + 0 + 9 + 7 + 9).

It is not an unprimeable number, because it can be changed into a prime (12320977) 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, 186649 + ... + 186714.

It is an arithmetic number, because the mean of its divisors is an integer number (2240184).

Almost surely, 212320979 is an apocalyptic number.

12320979 is a deficient number, since it is larger than the sum of its proper divisors (5600493).

12320979 is a wasteful number, since it uses less digits than its factorization.

12320979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373377.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12320979 is about 3510.1252114419. The cubic root of 12320979 is about 230.9661875886.

The spelling of 12320979 in words is "twelve million, three hundred twenty thousand, nine hundred seventy-nine".

Divisors: 1 3 11 33 373363 1120089 4106993 12320979