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13061610660 = 2235797320609
BaseRepresentation
bin11000010101000100…
…00101110010100100
31020201021201120101210
430022202011302210
5203222233020120
610000031351420
7641451600360
oct141242056244
936637646353
1013061610660
1155a2a3645a
122646382570
131302093b07
148bca062a0
15516a71ce0
hex30a885ca4

13061610660 has 96 divisors (see below), whose sum is σ = 42228184320. Its totient is φ = 2954723328.

The previous prime is 13061610659. The next prime is 13061610689. The reversal of 13061610660 is 6601616031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119565 + ... + 201044.

It is an arithmetic number, because the mean of its divisors is an integer number (439876920).

Almost surely, 213061610660 is an apocalyptic number.

13061610660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13061610660 is an abundant number, since it is smaller than the sum of its proper divisors (29166573660).

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

13061610660 is a wasteful number, since it uses less digits than its factorization.

13061610660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320725 (or 320723 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 13061610660 in words is "thirteen billion, sixty-one million, six hundred ten thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 97 105 140 194 210 291 388 420 485 582 679 970 1164 1358 1455 1940 2037 2716 2910 3395 4074 5820 6790 8148 10185 13580 20370 40740 320609 641218 961827 1282436 1603045 1923654 2244263 3206090 3847308 4488526 4809135 6412180 6732789 8977052 9618270 11221315 13465578 19236540 22442630 26931156 31099073 33663945 44885260 62198146 67327890 93297219 124396292 134655780 155495365 186594438 217693511 310990730 373188876 435387022 466486095 621981460 653080533 870774044 932972190 1088467555 1306161066 1865944380 2176935110 2612322132 3265402665 4353870220 6530805330 13061610660