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12292972 = 2217180779
BaseRepresentation
bin101110111001…
…001101101100
3212010112210021
4232321031230
511121333342
61115251524
7206326366
oct56711554
925115707
1012292972
116a3698a
124149ba4
132715463
1418bdd36
15112c567
hexbb936c

12292972 has 12 divisors (see below), whose sum is σ = 22778280. Its totient is φ = 5784896.

The previous prime is 12292967. The next prime is 12292993. The reversal of 12292972 is 27929221.

It is a super-2 number, since 2×122929722 = 302234321185568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90322 + ... + 90457.

It is an arithmetic number, because the mean of its divisors is an integer number (1898190).

Almost surely, 212292972 is an apocalyptic number.

It is an amenable number.

12292972 is a deficient number, since it is larger than the sum of its proper divisors (10485308).

12292972 is a wasteful number, since it uses less digits than its factorization.

12292972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180800 (or 180798 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 12292972 is about 3506.1334829125. The cubic root of 12292972 is about 230.7910505978.

The spelling of 12292972 in words is "twelve million, two hundred ninety-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 180779 361558 723116 3073243 6146486 12292972