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20220108680 = 2352321978379
BaseRepresentation
bin10010110101001101…
…100101111110001000
31221012011200221121002
4102311031211332020
5312402321434210
613142231034132
71314034042112
oct226515457610
957164627532
1020220108680
1186367a6a22
123b0380b948
131ba3182965
14d9b6203b2
157d52484a5
hex4b5365f88

20220108680 has 32 divisors (see below), whose sum is σ = 47473300800. Its totient is φ = 7736389056.

The previous prime is 20220108677. The next prime is 20220108721. The reversal of 20220108680 is 8680102202.

It is a super-2 number, since 2×202201086802 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10988270 + ... + 10990109.

It is an arithmetic number, because the mean of its divisors is an integer number (1483540650).

Almost surely, 220220108680 is an apocalyptic number.

20220108680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220108680 is an abundant number, since it is smaller than the sum of its proper divisors (27253192120).

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

20220108680 is a wasteful number, since it uses less digits than its factorization.

20220108680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21978413 (or 21978409 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 20220108680 in words is "twenty billion, two hundred twenty million, one hundred eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 21978379 43956758 87913516 109891895 175827032 219783790 439567580 505502717 879135160 1011005434 2022010868 2527513585 4044021736 5055027170 10110054340 20220108680