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29655951089 = 19285795857
BaseRepresentation
bin11011100111101000…
…011110011011110001
32211112202220101222212
4123213220132123301
5441213410413324
621342421541505
72066621265542
oct334750363361
984482811885
1029655951089
1111639013a96
1258b7874895
132a4801386b
14161488a4c9
15b8881870e
hex6e7a1e6f1

29655951089 has 12 divisors (see below), whose sum is σ = 31335788484. Its totient is φ = 28062035712.

The previous prime is 29655951079. The next prime is 29655951097. The reversal of 29655951089 is 98015955692.

It can be written as a sum of positive squares in 2 ways, for example, as 15181936225 + 14474014864 = 123215^2 + 120308^2 .

It is not a de Polignac number, because 29655951089 - 220 = 29654902513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29655951079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261449 + ... + 357305.

It is an arithmetic number, because the mean of its divisors is an integer number (2611315707).

Almost surely, 229655951089 is an apocalyptic number.

It is an amenable number.

29655951089 is a deficient number, since it is larger than the sum of its proper divisors (1679837395).

29655951089 is an equidigital number, since it uses as much as digits as its factorization.

29655951089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96752 (or 96733 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 59.

The spelling of 29655951089 in words is "twenty-nine billion, six hundred fifty-five million, nine hundred fifty-one thousand, eighty-nine".

Divisors: 1 19 361 857 16283 95857 309377 1821283 34604377 82149449 1560839531 29655951089