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29009033917 = 131221443007
BaseRepresentation
bin11011000001000100…
…101011101010111101
32202212200121121110121
4123001010223222331
5433402303041132
621154312134541
72044604501623
oct330104535275
982780547417
1029009033917
11113369305a6
125757097451
132973c9bb36
1415929ad513
15b4bb2e497
hex6c112babd

29009033917 has 4 divisors (see below), whose sum is σ = 29230477056. Its totient is φ = 28787590780.

The previous prime is 29009033899. The next prime is 29009033951. The reversal of 29009033917 is 71933090092.

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 29009033917 - 227 = 28874816189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29009033987) 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, 110721373 + ... + 110721634.

It is an arithmetic number, because the mean of its divisors is an integer number (7307619264).

Almost surely, 229009033917 is an apocalyptic number.

It is an amenable number.

29009033917 is a deficient number, since it is larger than the sum of its proper divisors (221443139).

29009033917 is a wasteful number, since it uses less digits than its factorization.

29009033917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221443138.

The product of its (nonzero) digits is 91854, while the sum is 43.

The spelling of 29009033917 in words is "twenty-nine billion, nine million, thirty-three thousand, nine hundred seventeen".

Divisors: 1 131 221443007 29009033917