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992198220 = 2235131272049
BaseRepresentation
bin111011001000111…
…011111001001100
32120010222220002020
4323020323321030
54013000320340
6242242130140
733405355116
oct7310737114
92503886066
10992198220
1146a085232
12238350950
1312a738050
1495aba3b6
155c18e9d0
hex3b23be4c

992198220 has 48 divisors (see below), whose sum is σ = 2991861600. Its totient is φ = 244233216.

The previous prime is 992198203. The next prime is 992198227. The reversal of 992198220 is 22891299.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (992198227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635245 + ... + 636804.

It is an arithmetic number, because the mean of its divisors is an integer number (62330450).

Almost surely, 2992198220 is an apocalyptic number.

It is an amenable number.

992198220 is an abundant number, since it is smaller than the sum of its proper divisors (1999663380).

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

992198220 is a wasteful number, since it uses less digits than its factorization.

992198220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272074 (or 1272072 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 992198220 is about 31499.1780845152. The cubic root of 992198220 is about 997.3926141142.

The spelling of 992198220 in words is "nine hundred ninety-two million, one hundred ninety-eight thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 1272049 2544098 3816147 5088196 6360245 7632294 12720490 15264588 16536637 19080735 25440980 33073274 38161470 49609911 66146548 76322940 82683185 99219822 165366370 198439644 248049555 330732740 496099110 992198220