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20412799692 = 22353186717191
BaseRepresentation
bin10011000000101100…
…101001101011001100
31221200121021122222020
4103000230221223030
5313301134042232
613213313050140
71321563635355
oct230054515314
957617248866
1020412799692
11872554759a
123b58256950
131c0407b1cc
14db905cd2c
157e710be2c
hex4c0b29acc

20412799692 has 48 divisors (see below), whose sum is σ = 48557359872. Its totient is φ = 6671920320.

The previous prime is 20412799609. The next prime is 20412799697. The reversal of 20412799692 is 29699721402.

It is not an unprimeable number, because it can be changed into a prime (20412799697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178817 + ... + 1196007.

It is an arithmetic number, because the mean of its divisors is an integer number (1011611664).

Almost surely, 220412799692 is an apocalyptic number.

It is an amenable number.

20412799692 is an abundant number, since it is smaller than the sum of its proper divisors (28144560180).

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

20412799692 is a wasteful number, since it uses less digits than its factorization.

20412799692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19118 (or 19116 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 20412799692 in words is "twenty billion, four hundred twelve million, seven hundred ninety-nine thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 1867 3734 5601 7468 11202 17191 22404 34382 51573 68764 98951 103146 197902 206292 296853 395804 593706 911123 1187412 1822246 2733369 3644492 5466738 10933476 32095597 64191194 96286791 128382388 192573582 385147164 1701066641 3402133282 5103199923 6804266564 10206399846 20412799692