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192243972 = 223791491361
BaseRepresentation
bin10110111010101…
…10100100000100
3111101202000011010
423131112210010
5343203301342
631024242220
74523022024
oct1335264404
9441660133
10192243972
1199575818
1254470370
1330a9cc3b
141b763a84
1511d2629c
hexb756904

192243972 has 48 divisors (see below), whose sum is σ = 457632000. Its totient is φ = 62799360.

The previous prime is 192243949. The next prime is 192243979. The reversal of 192243972 is 279342291.

It is a self number, because there is not a number n which added to its sum of digits gives 192243972.

It is not an unprimeable number, because it can be changed into a prime (192243979) 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, 140572 + ... + 141932.

It is an arithmetic number, because the mean of its divisors is an integer number (9534000).

Almost surely, 2192243972 is an apocalyptic number.

192243972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

192243972 is an abundant number, since it is smaller than the sum of its proper divisors (265388028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

192243972 is a wasteful number, since it uses less digits than its factorization.

192243972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1594 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 192243972 is about 13865.2072469185. The cubic root of 192243972 is about 577.1440778306.

The spelling of 192243972 in words is "one hundred ninety-two million, two hundred forty-three thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 79 149 158 237 298 316 447 474 596 894 948 1361 1788 2722 4083 5444 8166 11771 16332 23542 35313 47084 70626 107519 141252 202789 215038 322557 405578 430076 608367 645114 811156 1216734 1290228 2433468 16020331 32040662 48060993 64081324 96121986 192243972