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29095831 = 197314747
BaseRepresentation
bin110111011111…
…1011110010111
32000202012222101
41232333132113
524422031311
62515342531
7502211332
oct156773627
960665871
1029095831
1115473146
1298b1a47
13604958b
143c15619
15284aec1
hex1bbf797

29095831 has 4 divisors (see below), whose sum is σ = 29112552. Its totient is φ = 29079112.

The previous prime is 29095813. The next prime is 29095849. The reversal of 29095831 is 13859092.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (29095813) and next prime (29095849).

It is a cyclic number.

It is not a de Polignac number, because 29095831 - 25 = 29095799 is a prime.

It is a super-2 number, since 2×290958312 = 1693134763161122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29095811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5401 + ... + 9346.

It is an arithmetic number, because the mean of its divisors is an integer number (7278138).

Almost surely, 229095831 is an apocalyptic number.

29095831 is the 3412-nd centered pentagonal number.

29095831 is a deficient number, since it is larger than the sum of its proper divisors (16721).

29095831 is a wasteful number, since it uses less digits than its factorization.

29095831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 29095831 is about 5394.0551535927. The cubic root of 29095831 is about 307.5697279467.

The spelling of 29095831 in words is "twenty-nine million, ninety-five thousand, eight hundred thirty-one".

Divisors: 1 1973 14747 29095831