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78368250830 = 2549529158227
BaseRepresentation
bin100100011111100011…
…1001001101111001110
321111021121200121221112
41020333013021233032
52240444233011310
6100000223332022
75443016066252
oct1107707115716
9244247617845
1078368250830
113026591a851
1213231451012
13750c063b6c
143b1617c262
15208a0ec705
hex123f1c9bce

78368250830 has 16 divisors (see below), whose sum is σ = 141066591120. Its totient is φ = 31346469312.

The previous prime is 78368250827. The next prime is 78368250881. The reversal of 78368250830 is 3805286387.

It is a super-2 number, since 2×783682508302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416177 + ... + 574403.

It is an arithmetic number, because the mean of its divisors is an integer number (8816661945).

Almost surely, 278368250830 is an apocalyptic number.

78368250830 is a deficient number, since it is larger than the sum of its proper divisors (62698340290).

78368250830 is a wasteful number, since it uses less digits than its factorization.

78368250830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207763.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 78368250830 in words is "seventy-eight billion, three hundred sixty-eight million, two hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 10 49529 99058 158227 247645 316454 495290 791135 1582270 7836825083 15673650166 39184125415 78368250830