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2139119930 = 25475977141
BaseRepresentation
bin111111110000000…
…0110000100111010
312112002010112220002
41333200012010322
513340103314210
6552132433002
7104003135153
oct17740060472
95462115802
102139119930
119a8528512
124b8478762
13281236c4c
1416415092a
15c7be34a5
hex7f80613a

2139119930 has 32 divisors (see below), whose sum is σ = 3999041280. Its totient is φ = 823238080.

The previous prime is 2139119929. The next prime is 2139119933. The reversal of 2139119930 is 399119312.

It is not an unprimeable number, because it can be changed into a prime (2139119933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10841 + ... + 66300.

It is an arithmetic number, because the mean of its divisors is an integer number (124970040).

Almost surely, 22139119930 is an apocalyptic number.

2139119930 is a deficient number, since it is larger than the sum of its proper divisors (1859921350).

2139119930 is a wasteful number, since it uses less digits than its factorization.

2139119930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77254.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 2139119930 is about 46250.6208606976. The cubic root of 2139119930 is about 1288.4820656882.

The spelling of 2139119930 in words is "two billion, one hundred thirty-nine million, one hundred nineteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 47 59 94 118 235 295 470 590 2773 5546 13865 27730 77141 154282 385705 771410 3625627 4551319 7251254 9102638 18128135 22756595 36256270 45513190 213911993 427823986 1069559965 2139119930