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29542891 = 719222127
BaseRepresentation
bin111000010110…
…0100111101011
32001120221020011
41300230213223
530030333031
62533112351
7506052610
oct160544753
961527204
1029542891
1115749014
129a886b7
136174c01
143cd0507
1528d86b1
hex1c2c9eb

29542891 has 8 divisors (see below), whose sum is σ = 35540480. Its totient is φ = 23989608.

The previous prime is 29542861. The next prime is 29542901. The reversal of 29542891 is 19824592.

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

It is a cyclic number.

It is not a de Polignac number, because 29542891 - 25 = 29542859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29542811) 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, 110931 + ... + 111196.

It is an arithmetic number, because the mean of its divisors is an integer number (4442560).

Almost surely, 229542891 is an apocalyptic number.

29542891 is a deficient number, since it is larger than the sum of its proper divisors (5997589).

29542891 is a wasteful number, since it uses less digits than its factorization.

29542891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222153.

The product of its digits is 51840, while the sum is 40.

The square root of 29542891 is about 5435.3372480463. The cubic root of 29542891 is about 309.1370066536.

The spelling of 29542891 in words is "twenty-nine million, five hundred forty-two thousand, eight hundred ninety-one".

Divisors: 1 7 19 133 222127 1554889 4220413 29542891