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29628079 = 132279083
BaseRepresentation
bin111000100000…
…1011010101111
32001202021002021
41301001122233
530041044304
62535011011
7506556145
oct161013257
961667067
1029628079
11157a7018
129b09a67
1361a4910
143d13595
152903a54
hex1c416af

29628079 has 4 divisors (see below), whose sum is σ = 31907176. Its totient is φ = 27348984.

The previous prime is 29628073. The next prime is 29628101. The reversal of 29628079 is 97082692.

It is a happy number.

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

It is not a de Polignac number, because 29628079 - 215 = 29595311 is a prime.

It is a super-3 number, since 3×296280793 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29628073) 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, 1139529 + ... + 1139554.

It is an arithmetic number, because the mean of its divisors is an integer number (7976794).

Almost surely, 229628079 is an apocalyptic number.

29628079 is a deficient number, since it is larger than the sum of its proper divisors (2279097).

29628079 is a wasteful number, since it uses less digits than its factorization.

29628079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279096.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 29628079 is about 5443.1681032281. The cubic root of 29628079 is about 309.4338574411.

The spelling of 29628079 in words is "twenty-nine million, six hundred twenty-eight thousand, seventy-nine".

Divisors: 1 13 2279083 29628079