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29090307 = 331312799
BaseRepresentation
bin110111011111…
…0001000000011
32000201221101210
41232332020003
524421342212
62515301203
7502156251
oct156761003
960657353
1029090307
1115469a84
1298aa803
136046bcc
143c135d1
15284953c
hex1bbe203

29090307 has 8 divisors (see below), whose sum is σ = 40038400. Its totient is φ = 18767880.

The previous prime is 29090297. The next prime is 29090339. The reversal of 29090307 is 70309092.

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

It is not a de Polignac number, because 29090307 - 24 = 29090291 is a prime.

It is a super-2 number, since 2×290903072 = 1692491922708498, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29090357) 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 7 ways as a sum of consecutive naturals, for example, 156307 + ... + 156492.

It is an arithmetic number, because the mean of its divisors is an integer number (5004800).

Almost surely, 229090307 is an apocalyptic number.

29090307 is a deficient number, since it is larger than the sum of its proper divisors (10948093).

29090307 is a wasteful number, since it uses less digits than its factorization.

29090307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312833.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 29090307 is about 5393.5430840960. The cubic root of 29090307 is about 307.5502621257.

Adding to 29090307 its reverse (70309092), we get a palindrome (99399399).

The spelling of 29090307 in words is "twenty-nine million, ninety thousand, three hundred seven".

Divisors: 1 3 31 93 312799 938397 9696769 29090307