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29807069 = 177092473
BaseRepresentation
bin111000110110…
…1000111011101
32002002100121112
41301231013131
530112311234
62542511405
7511233035
oct161550735
962070545
1029807069
1115909546
129b95565
136238226
143d5c8c5
15293bace
hex1c6d1dd

29807069 has 8 divisors (see below), whose sum is σ = 31617720. Its totient is φ = 28002816.

The previous prime is 29807059. The next prime is 29807077. The reversal of 29807069 is 96070892.

It can be written as a sum of positive squares in 4 ways, for example, as 5943844 + 23863225 = 2438^2 + 4885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29807069 - 24 = 29807053 is a prime.

It is a super-2 number, since 2×298070692 = 1776922724741522, 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 (29807059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10817 + ... + 13289.

It is an arithmetic number, because the mean of its divisors is an integer number (3952215).

Almost surely, 229807069 is an apocalyptic number.

It is an amenable number.

29807069 is a deficient number, since it is larger than the sum of its proper divisors (1810651).

29807069 is a wasteful number, since it uses less digits than its factorization.

29807069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 29807069 is about 5459.5850574929. The cubic root of 29807069 is about 310.0557270611.

The spelling of 29807069 in words is "twenty-nine million, eight hundred seven thousand, sixty-nine".

Divisors: 1 17 709 2473 12053 42041 1753357 29807069