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29331031849 = 74190147407
BaseRepresentation
bin11011010100010001…
…000000011100101001
32210201010111210120221
4123110101000130221
5440032221004344
621250253450041
72055564441250
oct332421003451
983633453527
1029331031849
111149166a399
125826aa0921
1329c58cc562
1415c366b797
15b6a036184
hex6d4440729

29331031849 has 4 divisors (see below), whose sum is σ = 33521179264. Its totient is φ = 25140884436.

The previous prime is 29331031843. The next prime is 29331031883. The reversal of 29331031849 is 94813013392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29331031849 - 217 = 29330900777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29331031843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095073697 + ... + 2095073710.

It is an arithmetic number, because the mean of its divisors is an integer number (8380294816).

Almost surely, 229331031849 is an apocalyptic number.

It is an amenable number.

29331031849 is a deficient number, since it is larger than the sum of its proper divisors (4190147415).

29331031849 is an equidigital number, since it uses as much as digits as its factorization.

29331031849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190147414.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 29331031849 in words is "twenty-nine billion, three hundred thirty-one million, thirty-one thousand, eight hundred forty-nine".

Divisors: 1 7 4190147407 29331031849