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29015429 = 220713147
BaseRepresentation
bin110111010101…
…1110110000101
32000121010200112
41232223312011
524411443204
62513522405
7501425042
oct156536605
960533615
1029015429
11154187a3
129873405
13601bac1
143bd41c9
15283226e
hex1babd85

29015429 has 4 divisors (see below), whose sum is σ = 29030784. Its totient is φ = 29000076.

The previous prime is 29015423. The next prime is 29015431. The reversal of 29015429 is 92451092.

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 a de Polignac number, because none of the positive numbers 2k-29015429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29015395 and 29015404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29015423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4367 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (7257696).

Almost surely, 229015429 is an apocalyptic number.

It is an amenable number.

29015429 is a deficient number, since it is larger than the sum of its proper divisors (15355).

29015429 is a wasteful number, since it uses less digits than its factorization.

29015429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 29015429 is about 5386.5971633305. The cubic root of 29015429 is about 307.2861588584.

The spelling of 29015429 in words is "twenty-nine million, fifteen thousand, four hundred twenty-nine".

Divisors: 1 2207 13147 29015429