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212919518120 = 23561727073187
BaseRepresentation
bin1100011001001011111…
…1100000001110101000
3202100120201122012120112
43012102333200032220
511442024344034440
6241451444113452
721245226020411
oct3062277401650
9670521565515
10212919518120
1182331576401
1235322395888
1317102b2235a
14a43bc9a808
1558127c9965
hex3192fe03a8

212919518120 has 64 divisors (see below), whose sum is σ = 480173244480. Its totient is φ = 84971690496.

The previous prime is 212919518089. The next prime is 212919518137. The reversal of 212919518120 is 21815919212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66807167 + ... + 66810353.

It is an arithmetic number, because the mean of its divisors is an integer number (7502706945).

Almost surely, 2212919518120 is an apocalyptic number.

212919518120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212919518120 is an abundant number, since it is smaller than the sum of its proper divisors (267253726360).

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

212919518120 is a wasteful number, since it uses less digits than its factorization.

212919518120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522 (or 6518 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 41.

The spelling of 212919518120 in words is "two hundred twelve billion, nine hundred nineteen million, five hundred eighteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 617 1234 2468 2707 3085 3187 4936 5414 6170 6374 10828 12340 12748 13535 15935 21656 24680 25496 27070 31870 54140 63740 108280 127480 1670219 1966379 3340438 3932758 6680876 7865516 8351095 8627209 9831895 13361752 15731032 16702190 17254418 19663790 33404380 34508836 39327580 43136045 66808760 69017672 78655160 86272090 172544180 345088360 5322987953 10645975906 21291951812 26614939765 42583903624 53229879530 106459759060 212919518120