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78533082234 = 23214940971593
BaseRepresentation
bin100100100100011101…
…1111011110001111010
321111201002211221010100
41021020323323301322
52241313432112414
6100024432300230
75450060120265
oct1111073736172
9244632757110
1078533082234
113033a972052
12132786a1676
137537256739
143b30007cdc
15209980b609
hex1248efbc7a

78533082234 has 48 divisors (see below), whose sum is σ = 171718209000. Its totient is φ = 25938067968.

The previous prime is 78533082233. The next prime is 78533082239. The reversal of 78533082234 is 43228033587.

78533082234 is a `hidden beast` number, since 7 + 8 + 5 + 330 + 82 + 234 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66277928025 + 12255154209 = 257445^2 + 110703^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78533082234.

It is not an unprimeable number, because it can be changed into a prime (78533082233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1061142 + ... + 1132734.

Almost surely, 278533082234 is an apocalyptic number.

78533082234 is an abundant number, since it is smaller than the sum of its proper divisors (93185126766).

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

78533082234 is a wasteful number, since it uses less digits than its factorization.

78533082234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72159 (or 72156 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 78533082234 in words is "seventy-eight billion, five hundred thirty-three million, eighty-two thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 149 298 409 447 818 894 1227 1341 2454 2682 3681 7362 60941 71593 121882 143186 182823 214779 365646 429558 548469 644337 1096938 1288674 10667357 21334714 29281537 32002071 58563074 64004142 87844611 96006213 175689222 192012426 263533833 527067666 4362949013 8725898026 13088847039 26177694078 39266541117 78533082234