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29297081 = 113771983
BaseRepresentation
bin110111111000…
…0100110111001
32001010110001002
41233300212321
530000001311
62523534345
7504010142
oct157604671
961113032
1029297081
11155a0370
12998a3b5
1360ba068
143c68ac9
15288a93b
hex1bf09b9

29297081 has 8 divisors (see below), whose sum is σ = 32824704. Its totient is φ = 25913520.

The previous prime is 29297063. The next prime is 29297111. The reversal of 29297081 is 18079292.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29297081 is a prime.

It is a super-2 number, since 2×292970812 = 1716637910241122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29297381) 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, 35585 + ... + 36398.

It is an arithmetic number, because the mean of its divisors is an integer number (4103088).

Almost surely, 229297081 is an apocalyptic number.

It is an amenable number.

29297081 is a deficient number, since it is larger than the sum of its proper divisors (3527623).

29297081 is a wasteful number, since it uses less digits than its factorization.

29297081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72031.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 29297081 is about 5412.6778030842. The cubic root of 29297081 is about 308.2772318349.

The spelling of 29297081 in words is "twenty-nine million, two hundred ninety-seven thousand, eighty-one".

Divisors: 1 11 37 407 71983 791813 2663371 29297081