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29064689 = 43675923
BaseRepresentation
bin110111011011…
…1110111110001
32000200122020222
41232313313301
524420032224
62514542425
7502021463
oct156676761
960618228
1029064689
1115451805
129897a15
136038354
143c08133
152841b5e
hex1bb7df1

29064689 has 4 divisors (see below), whose sum is σ = 29740656. Its totient is φ = 28388724.

The previous prime is 29064677. The next prime is 29064703. The reversal of 29064689 is 98646092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29064689 - 212 = 29060593 is a prime.

It is a super-2 number, since 2×290646892 = 1689512293333442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29064619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337919 + ... + 338004.

It is an arithmetic number, because the mean of its divisors is an integer number (7435164).

Almost surely, 229064689 is an apocalyptic number.

It is an amenable number.

29064689 is a deficient number, since it is larger than the sum of its proper divisors (675967).

29064689 is an equidigital number, since it uses as much as digits as its factorization.

29064689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675966.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 29064689 is about 5391.1676842777. The cubic root of 29064689 is about 307.4599555671.

The spelling of 29064689 in words is "twenty-nine million, sixty-four thousand, six hundred eighty-nine".

Divisors: 1 43 675923 29064689