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29106910769 = 40971166041
BaseRepresentation
bin11011000110111010…
…000011011000110001
32210010111210021021012
4123012322003120301
5434102332121034
621212130040305
72050203442106
oct330672033061
983114707235
1029106910769
1111387101962
125783a19095
13298b34b131
1415a19aaaad
15b55514cce
hex6c6e83631

29106910769 has 4 divisors (see below), whose sum is σ = 29178077220. Its totient is φ = 29035744320.

The previous prime is 29106910751. The next prime is 29106910831. The reversal of 29106910769 is 96701960192.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11394495025 + 17712415744 = 106745^2 + 133088^2 .

It is a cyclic number.

It is not a de Polignac number, because 29106910769 - 28 = 29106910513 is a prime.

It is a super-2 number, since 2×291069107692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29106910709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35582612 + ... + 35583429.

It is an arithmetic number, because the mean of its divisors is an integer number (7294519305).

Almost surely, 229106910769 is an apocalyptic number.

It is an amenable number.

29106910769 is a deficient number, since it is larger than the sum of its proper divisors (71166451).

29106910769 is an equidigital number, since it uses as much as digits as its factorization.

29106910769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71166450.

The product of its (nonzero) digits is 367416, while the sum is 50.

The spelling of 29106910769 in words is "twenty-nine billion, one hundred six million, nine hundred ten thousand, seven hundred sixty-nine".

Divisors: 1 409 71166041 29106910769