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13192779390 = 2357193306461
BaseRepresentation
bin11000100100101100…
…11101011001111110
31021001102112122001220
430102112131121332
5204004322420030
610021035014210
7644633526450
oct142226353176
937042478056
1013192779390
11565aa8646a
12268229a366
1313232cb54b
148d21cc2d0
15523331a10
hex31259d67e

13192779390 has 64 divisors (see below), whose sum is σ = 38090442240. Its totient is φ = 2856781440.

The previous prime is 13192779377. The next prime is 13192779403. The reversal of 13192779390 is 9397729131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13192779377) and next prime (13192779403).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1649241 + ... + 1657220.

It is an arithmetic number, because the mean of its divisors is an integer number (595163160).

Almost surely, 213192779390 is an apocalyptic number.

13192779390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13192779390 is an abundant number, since it is smaller than the sum of its proper divisors (24897662850).

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

13192779390 is a wasteful number, since it uses less digits than its factorization.

13192779390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306497.

The product of its (nonzero) digits is 642978, while the sum is 51.

The spelling of 13192779390 in words is "thirteen billion, one hundred ninety-two million, seven hundred seventy-nine thousand, three hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 210 266 285 399 570 665 798 1330 1995 3990 3306461 6612922 9919383 16532305 19838766 23145227 33064610 46290454 49596915 62822759 69435681 99193830 115726135 125645518 138871362 188468277 231452270 314113795 347178405 376936554 439759313 628227590 694356810 879518626 942341385 1319277939 1884682770 2198796565 2638555878 4397593130 6596389695 13192779390