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29179289 = 612332053
BaseRepresentation
bin110111101001…
…1110110011001
32000220110110102
41233103312121
524432214124
62521225145
7503006546
oct157236631
960813412
1029179289
111551a917
1299321b5
136078569
143c37bcd
152865aae
hex1bd3d99

29179289 has 8 divisors (see below), whose sum is σ = 29799432. Its totient is φ = 28563840.

The previous prime is 29179253. The next prime is 29179291. The reversal of 29179289 is 98297192.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 105625 + 29073664 = 325^2 + 5392^2 .

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 29179289 - 216 = 29113753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29179229) 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, 13187 + ... + 15239.

It is an arithmetic number, because the mean of its divisors is an integer number (3724929).

Almost surely, 229179289 is an apocalyptic number.

It is an amenable number.

29179289 is a deficient number, since it is larger than the sum of its proper divisors (620143).

29179289 is a wasteful number, since it uses less digits than its factorization.

29179289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347.

The product of its digits is 163296, while the sum is 47.

The square root of 29179289 is about 5401.7857232586. The cubic root of 29179289 is about 307.8635231918.

The spelling of 29179289 in words is "twenty-nine million, one hundred seventy-nine thousand, two hundred eighty-nine".

Divisors: 1 61 233 2053 14213 125233 478349 29179289