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29942797 = 1712591399
BaseRepresentation
bin111001000111…
…0010000001101
32002100020210111
41302032100031
530131132142
62545440021
7512336533
oct162162015
962306714
1029942797
11159a1515
12a040011
136284c41
143d96153
152966e17
hex1c8e40d

29942797 has 8 divisors (see below), whose sum is σ = 31752000. Its totient is φ = 28138944.

The previous prime is 29942789. The next prime is 29942837. The reversal of 29942797 is 79724992.

It is a happy number.

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

It is not a de Polignac number, because 29942797 - 23 = 29942789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29942797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29942747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20704 + ... + 22102.

It is an arithmetic number, because the mean of its divisors is an integer number (3969000).

Almost surely, 229942797 is an apocalyptic number.

It is an amenable number.

29942797 is a deficient number, since it is larger than the sum of its proper divisors (1809203).

29942797 is a wasteful number, since it uses less digits than its factorization.

29942797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675.

The product of its digits is 571536, while the sum is 49.

The square root of 29942797 is about 5472.0011878654. The cubic root of 29942797 is about 310.5256326928.

The spelling of 29942797 in words is "twenty-nine million, nine hundred forty-two thousand, seven hundred ninety-seven".

Divisors: 1 17 1259 1399 21403 23783 1761341 29942797