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204080408829 = 32112649128871
BaseRepresentation
bin1011111000010000100…
…0111110100011111101
3201111202201021221010100
42332010020332203331
511320424041040304
6233430411231313
720513205565443
oct2760410764375
9644681257110
10204080408829
1179606085800
1233676148539
13163247b507b
149c3dda6b93
1554967ce439
hex2f8423e8fd

204080408829 has 36 divisors (see below), whose sum is σ = 324078614496. Its totient is φ = 123661758000.

The previous prime is 204080408797. The next prime is 204080408837. The reversal of 204080408829 is 928804080402.

It is a happy number.

It is not a de Polignac number, because 204080408829 - 25 = 204080408797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204080408849) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7054264 + ... + 7083134.

It is an arithmetic number, because the mean of its divisors is an integer number (9002183736).

Almost surely, 2204080408829 is an apocalyptic number.

It is an amenable number.

204080408829 is a deficient number, since it is larger than the sum of its proper divisors (119998205667).

204080408829 is a wasteful number, since it uses less digits than its factorization.

204080408829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35390 (or 35376 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 204080408829 in words is "two hundred four billion, eighty million, four hundred eight thousand, eight hundred twenty-nine".

Divisors: 1 3 9 11 33 99 121 363 1089 6491 19473 28871 58419 71401 86613 214203 259839 317581 642609 785411 952743 2356233 2858229 3493391 7068699 10480173 31440519 187401661 562204983 1686614949 2061418271 6184254813 18552764439 22675600981 68026802943 204080408829