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29100071 = 7211134153
BaseRepresentation
bin110111100000…
…0100000100111
32000202102210102
41233000200213
524422200241
62515414315
7502226600
oct157004047
960672712
1029100071
1115476350
1298b439b
13604b4a0
143c16da7
15284c39b
hex1bc0827

29100071 has 24 divisors (see below), whose sum is σ = 39778704. Its totient is φ = 20926080.

The previous prime is 29100061. The next prime is 29100089. The reversal of 29100071 is 17000192.

It is not a de Polignac number, because 29100071 - 26 = 29100007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29100011) 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 23 ways as a sum of consecutive naturals, for example, 4931 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (1657446).

Almost surely, 229100071 is an apocalyptic number.

29100071 is a deficient number, since it is larger than the sum of its proper divisors (10678633).

29100071 is a wasteful number, since it uses less digits than its factorization.

29100071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 29100071 is about 5394.4481645484. The cubic root of 29100071 is about 307.5846674559.

The spelling of 29100071 in words is "twenty-nine million, one hundred thousand, seventy-one".

Divisors: 1 7 11 13 49 77 91 143 539 637 1001 4153 7007 29071 45683 53989 203497 319781 377923 593879 2238467 2645461 4157153 29100071