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12196761 = 34065587
BaseRepresentation
bin101110100001…
…101110011001
3211221122210220
4232201232121
511110244021
61113230253
7205446033
oct56415631
924848726
1012196761
116980675
124102389
1326b0725
141896c53
15110dcc6
hexba1b99

12196761 has 4 divisors (see below), whose sum is σ = 16262352. Its totient is φ = 8131172.

The previous prime is 12196759. The next prime is 12196783. The reversal of 12196761 is 16769121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12196761 - 21 = 12196759 is a prime.

It is a super-2 number, since 2×121967612 = 297521957782242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12196661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032791 + ... + 2032796.

It is an arithmetic number, because the mean of its divisors is an integer number (4065588).

Almost surely, 212196761 is an apocalyptic number.

It is an amenable number.

12196761 is a deficient number, since it is larger than the sum of its proper divisors (4065591).

12196761 is an equidigital number, since it uses as much as digits as its factorization.

12196761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4065590.

The product of its digits is 4536, while the sum is 33.

The square root of 12196761 is about 3492.3861470347. The cubic root of 12196761 is about 230.1873772361.

The spelling of 12196761 in words is "twelve million, one hundred ninety-six thousand, seven hundred sixty-one".

Divisors: 1 3 4065587 12196761