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204987676341 = 37237144913313
BaseRepresentation
bin1011111011101000110…
…1111011011010110101
3201121002221110220011210
42332322031323122311
511324303321120331
6234100421152033
720544533333310
oct2767215733265
9647087426153
10204987676341
1179a31221268
1233889b5b619
131643a754656
149cc8695977
1554eb294446
hex2fba37b6b5

204987676341 has 64 divisors (see below), whose sum is σ = 331294924800. Its totient is φ = 110210580480.

The previous prime is 204987676339. The next prime is 204987676393. The reversal of 204987676341 is 143676789402.

It is not a de Polignac number, because 204987676341 - 21 = 204987676339 is a prime.

It is a super-2 number, since 2×2049876763412 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204987676331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15390901 + ... + 15404213.

It is an arithmetic number, because the mean of its divisors is an integer number (5176483200).

Almost surely, 2204987676341 is an apocalyptic number.

204987676341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

204987676341 is a deficient number, since it is larger than the sum of its proper divisors (126307248459).

204987676341 is a wasteful number, since it uses less digits than its factorization.

204987676341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13866.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 204987676341 in words is "two hundred four billion, nine hundred eighty-seven million, six hundred seventy-six thousand, three hundred forty-one".

Divisors: 1 3 7 21 23 69 71 161 213 449 483 497 1347 1491 1633 3143 4899 9429 10327 11431 13313 30981 31879 34293 39939 72289 93191 95637 216867 223153 279573 306199 669459 733217 918597 945223 2143393 2199651 2835669 5132519 5977537 6430179 6616561 15397557 17932611 19849683 21740129 41842759 65220387 125528277 137483351 152180903 412450053 424405127 456542709 962383457 1273215381 2887150371 2970835889 8912507667 9761317921 29283953763 68329225447 204987676341