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29638051 = 43689257
BaseRepresentation
bin111000100001…
…1110110100011
32001202202202121
41301003312203
530041404201
62535125111
7506630212
oct161036643
961682677
1029638051
1115803563
129b13797
1361a9311
143d17079
1529069a1
hex1c43da3

29638051 has 4 divisors (see below), whose sum is σ = 30327352. Its totient is φ = 28948752.

The previous prime is 29638033. The next prime is 29638057. The reversal of 29638051 is 15083692.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29638051 - 29 = 29637539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29637998 and 29638016.

It is not an unprimeable number, because it can be changed into a prime (29638057) 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 3 ways as a sum of consecutive naturals, for example, 344586 + ... + 344671.

It is an arithmetic number, because the mean of its divisors is an integer number (7581838).

Almost surely, 229638051 is an apocalyptic number.

29638051 is a deficient number, since it is larger than the sum of its proper divisors (689301).

29638051 is an equidigital number, since it uses as much as digits as its factorization.

29638051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689300.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 29638051 is about 5444.0840368238. The cubic root of 29638051 is about 309.4685692012.

The spelling of 29638051 in words is "twenty-nine million, six hundred thirty-eight thousand, fifty-one".

Divisors: 1 43 689257 29638051