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29007979 = 7111328979
BaseRepresentation
bin110111010101…
…0000001101011
32000120202110121
41232222001223
524411223404
62513424111
7501364240
oct156520153
960522417
1029007979
1115413140
12986b037
1360185b0
143bd15c7
15282ee54
hex1baa06b

29007979 has 16 divisors (see below), whose sum is σ = 38949120. Its totient is φ = 20864160.

The previous prime is 29007961. The next prime is 29007983. The reversal of 29007979 is 97970092.

It is a cyclic number.

It is not a de Polignac number, because 29007979 - 211 = 29005931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29007959) 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 15 ways as a sum of consecutive naturals, for example, 13489 + ... + 15490.

It is an arithmetic number, because the mean of its divisors is an integer number (2434320).

Almost surely, 229007979 is an apocalyptic number.

29007979 is a deficient number, since it is larger than the sum of its proper divisors (9941141).

29007979 is a wasteful number, since it uses less digits than its factorization.

29007979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29010.

The product of its (nonzero) digits is 71442, while the sum is 43.

The square root of 29007979 is about 5385.9055877355. The cubic root of 29007979 is about 307.2598570146.

The spelling of 29007979 in words is "twenty-nine million, seven thousand, nine hundred seventy-nine".

Divisors: 1 7 11 13 77 91 143 1001 28979 202853 318769 376727 2231383 2637089 4143997 29007979