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219192912070 = 251121710655951
BaseRepresentation
bin1100110000100011101…
…0100110100011000110
3202221202221010122020121
43030020322212203012
512042401341141240
6244410144452154
721556543003606
oct3141072464306
9687687118217
10219192912070
1184a60759100
123659331a05a
1317892731992
14a875114c06
155a7d41804a
hex3308ea68c6

219192912070 has 48 divisors (see below), whose sum is σ = 459186283584. Its totient is φ = 75017888000.

The previous prime is 219192912049. The next prime is 219192912073. The reversal of 219192912070 is 70219291912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219192912073) 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 23 ways as a sum of consecutive naturals, for example, 5307406 + ... + 5348545.

It is an arithmetic number, because the mean of its divisors is an integer number (9566380908).

Almost surely, 2219192912070 is an apocalyptic number.

219192912070 is an abundant number, since it is smaller than the sum of its proper divisors (239993371514).

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

219192912070 is a wasteful number, since it uses less digits than its factorization.

219192912070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655997 (or 10655986 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 219192912070 in words is "two hundred nineteen billion, one hundred ninety-two million, nine hundred twelve thousand, seventy".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 121 170 187 242 374 605 935 1210 1870 2057 4114 10285 20570 10655951 21311902 53279755 106559510 117215461 181151167 234430922 362302334 586077305 905755835 1172154610 1289370071 1811511670 1992662837 2578740142 3985325674 6446850355 9963314185 12893700710 19926628370 21919291207 43838582414 109596456035 219192912070