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12113279 = 191095849
BaseRepresentation
bin101110001101…
…010101111111
3211210102021222
4232031111333
511100111104
61111343555
7204650453
oct56152577
924712258
1012113279
116923982
124081bbb
132681729
141874663
1510e41be
hexb8d57f

12113279 has 8 divisors (see below), whose sum is σ = 12870000. Its totient is φ = 11368512.

The previous prime is 12113273. The next prime is 12113291. The reversal of 12113279 is 97231121.

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 12113279 - 212 = 12109183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113273) 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, 854 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (1608750).

Almost surely, 212113279 is an apocalyptic number.

12113279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12113279 is a deficient number, since it is larger than the sum of its proper divisors (756721).

12113279 is a wasteful number, since it uses less digits than its factorization.

12113279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977.

The product of its digits is 756, while the sum is 26.

The square root of 12113279 is about 3480.4136248440. The cubic root of 12113279 is about 229.6609939549.

The spelling of 12113279 in words is "twelve million, one hundred thirteen thousand, two hundred seventy-nine".

Divisors: 1 19 109 2071 5849 111131 637541 12113279