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12192943 = 737179263
BaseRepresentation
bin101110100000…
…110010101111
3211221110120111
4232200302233
511110133233
61113200451
7205431640
oct56406257
924843514
1012192943
116978814
124100127
1326aba79
1418956c7
15110cacd
hexba0caf

12192943 has 16 divisors (see below), whose sum is σ = 14446080. Its totient is φ = 10073376.

The previous prime is 12192923. The next prime is 12192953. The reversal of 12192943 is 34929121.

It is a cyclic number.

It is not a de Polignac number, because 12192943 - 221 = 10095791 is a prime.

It is a Duffinian number.

Its product of digits (3888) is a multiple of the sum of its prime divisors (486).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192923) 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 15 ways as a sum of consecutive naturals, for example, 46230 + ... + 46492.

It is an arithmetic number, because the mean of its divisors is an integer number (902880).

Almost surely, 212192943 is an apocalyptic number.

12192943 is a deficient number, since it is larger than the sum of its proper divisors (2253137).

12192943 is a wasteful number, since it uses less digits than its factorization.

12192943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 3888, while the sum is 31.

The square root of 12192943 is about 3491.8394865744. The cubic root of 12192943 is about 230.1633559098.

The spelling of 12192943 in words is "twelve million, one hundred ninety-two thousand, nine hundred forty-three".

Divisors: 1 7 37 179 259 263 1253 1841 6623 9731 46361 47077 68117 329539 1741849 12192943