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20412292 = 229752609
BaseRepresentation
bin100110111011…
…1011110000100
31102102001101211
41031313132010
520211143132
62005301204
7335334025
oct115673604
942361354
1020412292
111058206a
126a04804
1342c8ca4
1429d4c4c
151bd3147
hex1377784

20412292 has 12 divisors (see below), whose sum is σ = 36090460. Its totient is φ = 10100736.

The previous prime is 20412277. The next prime is 20412319. The reversal of 20412292 is 29221402.

It can be written as a sum of positive squares in 2 ways, for example, as 15241216 + 5171076 = 3904^2 + 2274^2 .

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, 25917 + ... + 26692.

Almost surely, 220412292 is an apocalyptic number.

It is an amenable number.

20412292 is a deficient number, since it is larger than the sum of its proper divisors (15678168).

20412292 is a wasteful number, since it uses less digits than its factorization.

20412292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52710 (or 52708 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20412292 is about 4517.9964586086. The cubic root of 20412292 is about 273.2943106430.

Adding to 20412292 its reverse (29221402), we get a palindrome (49633694).

The spelling of 20412292 in words is "twenty million, four hundred twelve thousand, two hundred ninety-two".

Divisors: 1 2 4 97 194 388 52609 105218 210436 5103073 10206146 20412292