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29149889 = 31940319
BaseRepresentation
bin110111100110…
…0101011000001
32000211222010112
41233030223001
524430244024
62520441105
7502525046
oct157145301
960758115
1029149889
11154aa81a
129919195
136068072
143c2b1cd
15285c00e
hex1bccac1

29149889 has 4 divisors (see below), whose sum is σ = 30090240. Its totient is φ = 28209540.

The previous prime is 29149877. The next prime is 29149909. The reversal of 29149889 is 98894192.

It is a happy number.

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 29149889 - 24 = 29149873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29149859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470129 + ... + 470190.

It is an arithmetic number, because the mean of its divisors is an integer number (7522560).

Almost surely, 229149889 is an apocalyptic number.

It is an amenable number.

29149889 is a deficient number, since it is larger than the sum of its proper divisors (940351).

29149889 is an equidigital number, since it uses as much as digits as its factorization.

29149889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940350.

The product of its digits is 373248, while the sum is 50.

The square root of 29149889 is about 5399.0637151269. The cubic root of 29149889 is about 307.7600910489.

The spelling of 29149889 in words is "twenty-nine million, one hundred forty-nine thousand, eight hundred eighty-nine".

Divisors: 1 31 940319 29149889