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82780750030 = 25112325321031
BaseRepresentation
bin100110100011000011…
…1100000000011001110
321220200010120210220211
41031012013200003032
52324013333000110
6102010130433034
75660245523356
oct1150607400316
9256603523824
1082780750030
113211a636800
121406313277a
137a63282134
1440141cbb66
1522476a498a
hex13461e00ce

82780750030 has 48 divisors (see below), whose sum is σ = 163840878432. Its totient is φ = 30091406400.

The previous prime is 82780750007. The next prime is 82780750033. The reversal of 82780750030 is 3005708728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82780750033) 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, 3925615 + ... + 3946645.

It is an arithmetic number, because the mean of its divisors is an integer number (3413351634).

Almost surely, 282780750030 is an apocalyptic number.

82780750030 is a deficient number, since it is larger than the sum of its proper divisors (81060128402).

82780750030 is a wasteful number, since it uses less digits than its factorization.

82780750030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24313 (or 24302 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 82780750030 in words is "eighty-two billion, seven hundred eighty million, seven hundred fifty thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 3253 6506 16265 21031 32530 35783 42062 71566 105155 178915 210310 231341 357830 393613 462682 787226 1156705 1968065 2313410 2544751 3936130 5089502 12723755 25447510 68413843 136827686 342069215 684138430 752552273 1505104546 3762761365 7525522730 8278075003 16556150006 41390375015 82780750030