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12190189 = 1110710357
BaseRepresentation
bin101110100000…
…000111101101
3211221022210111
4232200013231
511110041224
61113140021
7205420624
oct56400755
924838714
1012190189
116976740
1240ba611
1326aa73b
1418946bb
15110bd94
hexba01ed

12190189 has 8 divisors (see below), whose sum is σ = 13423968. Its totient is φ = 10977360.

The previous prime is 12190187. The next prime is 12190219. The reversal of 12190189 is 98109121.

12190189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12190189 - 21 = 12190187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12190189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190187) 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, 4002 + ... + 6355.

It is an arithmetic number, because the mean of its divisors is an integer number (1677996).

Almost surely, 212190189 is an apocalyptic number.

It is an amenable number.

12190189 is a deficient number, since it is larger than the sum of its proper divisors (1233779).

12190189 is a wasteful number, since it uses less digits than its factorization.

12190189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 12190189 is about 3491.4451162806. The cubic root of 12190189 is about 230.1460257320.

The spelling of 12190189 in words is "twelve million, one hundred ninety thousand, one hundred eighty-nine".

Divisors: 1 11 107 1177 10357 113927 1108199 12190189