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29071137 = 329389859
BaseRepresentation
bin110111011100…
…1011100100001
32000200222002210
41232321130201
524420234022
62515032333
7502046334
oct156713441
960628083
1029071137
1115456637
12989b6a9
13603b274
143c0a61b
152843a0c
hex1bb9721

29071137 has 16 divisors (see below), whose sum is σ = 40248000. Its totient is φ = 18642624.

The previous prime is 29071123. The next prime is 29071153. The reversal of 29071137 is 73117092.

It is not a de Polignac number, because 29071137 - 26 = 29071073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29071117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33414 + ... + 34272.

It is an arithmetic number, because the mean of its divisors is an integer number (2515500).

Almost surely, 229071137 is an apocalyptic number.

It is an amenable number.

29071137 is a deficient number, since it is larger than the sum of its proper divisors (11176863).

29071137 is a wasteful number, since it uses less digits than its factorization.

29071137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 2646, while the sum is 30.

The square root of 29071137 is about 5391.7656662730. The cubic root of 29071137 is about 307.4826905453.

The spelling of 29071137 in words is "twenty-nine million, seventy-one thousand, one hundred thirty-seven".

Divisors: 1 3 29 87 389 859 1167 2577 11281 24911 33843 74733 334151 1002453 9690379 29071137