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12193359220 = 2257228138183
BaseRepresentation
bin10110101101100011…
…11110010101110100
31011110202221211100001
423112301332111310
5144432444443340
65333534001044
7611106562150
oct132661762564
934422854301
1012193359220
115197919289
122443646184
1311c4235273
14839592060
154b571729a
hex2d6c7e574

12193359220 has 48 divisors (see below), whose sum is σ = 29277658368. Its totient is φ = 4178638080.

The previous prime is 12193359197. The next prime is 12193359223. The reversal of 12193359220 is 2295339121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12193359220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193359223) 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, 300249 + ... + 338431.

It is an arithmetic number, because the mean of its divisors is an integer number (609951216).

Almost surely, 212193359220 is an apocalyptic number.

12193359220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12193359220 is an abundant number, since it is smaller than the sum of its proper divisors (17084299148).

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

12193359220 is a wasteful number, since it uses less digits than its factorization.

12193359220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40480 (or 40478 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 12193359220 in words is "twelve billion, one hundred ninety-three million, three hundred fifty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2281 4562 9124 11405 15967 22810 31934 38183 45620 63868 76366 79835 152732 159670 190915 267281 319340 381830 534562 763660 1069124 1336405 2672810 5345620 87095423 174190846 348381692 435477115 609667961 870954230 1219335922 1741908460 2438671844 3048339805 6096679610 12193359220