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29135489 = 71410359
BaseRepresentation
bin110111100100…
…1001010000001
32000211020101012
41233021022001
524424313424
62520250305
7502435055
oct157111201
960736335
1029135489
111549aa19
129910995
136061646
143c25c65
152857b0e
hex1bc9281

29135489 has 4 divisors (see below), whose sum is σ = 29545920. Its totient is φ = 28725060.

The previous prime is 29135479. The next prime is 29135497. The reversal of 29135489 is 98453192.

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 29135489 - 212 = 29131393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29135479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205109 + ... + 205250.

It is an arithmetic number, because the mean of its divisors is an integer number (7386480).

Almost surely, 229135489 is an apocalyptic number.

It is an amenable number.

29135489 is a deficient number, since it is larger than the sum of its proper divisors (410431).

29135489 is an equidigital number, since it uses as much as digits as its factorization.

29135489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410430.

The product of its digits is 77760, while the sum is 41.

The square root of 29135489 is about 5397.7299858366. The cubic root of 29135489 is about 307.7094050323.

The spelling of 29135489 in words is "twenty-nine million, one hundred thirty-five thousand, four hundred eighty-nine".

Divisors: 1 71 410359 29135489