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12195069 = 317239119
BaseRepresentation
bin101110100001…
…010011111101
3211221120111020
4232201103331
511110220234
61113214353
7205441065
oct56412375
924846436
1012195069
11697a377
1241013b9
1326aca23
1418963a5
15110d549
hexba14fd

12195069 has 8 divisors (see below), whose sum is σ = 17216640. Its totient is φ = 7651776.

The previous prime is 12195067. The next prime is 12195077. The reversal of 12195069 is 96059121.

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

It is not a de Polignac number, because 12195069 - 21 = 12195067 is a prime.

It is a super-2 number, since 2×121950692 = 297439415829522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12195067) 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, 119509 + ... + 119610.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 212195069 is an apocalyptic number.

It is an amenable number.

12195069 is a deficient number, since it is larger than the sum of its proper divisors (5021571).

12195069 is a wasteful number, since it uses less digits than its factorization.

12195069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239139.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 12195069 is about 3492.1438973788. The cubic root of 12195069 is about 230.1767324686.

The spelling of 12195069 in words is "twelve million, one hundred ninety-five thousand, sixty-nine".

Divisors: 1 3 17 51 239119 717357 4065023 12195069