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29118990 = 235970633
BaseRepresentation
bin110111100010…
…1001000001110
32000210101202010
41233011020032
524423301430
62520042050
7502336005
oct157051016
960711663
1029118990
111548958a
129903326
136056c94
143c1dc3c
152852cb0
hex1bc520e

29118990 has 16 divisors (see below), whose sum is σ = 69885648. Its totient is φ = 7765056.

The previous prime is 29118983. The next prime is 29119009. The reversal of 29118990 is 9981192.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485287 + ... + 485346.

It is an arithmetic number, because the mean of its divisors is an integer number (4367853).

Almost surely, 229118990 is an apocalyptic number.

29118990 is an abundant number, since it is smaller than the sum of its proper divisors (40766658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29118990 is a wasteful number, since it uses less digits than its factorization.

29118990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970643.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 29118990 is about 5396.2014417551. The cubic root of 29118990 is about 307.6513102909.

The spelling of 29118990 in words is "twenty-nine million, one hundred eighteen thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 970633 1941266 2911899 4853165 5823798 9706330 14559495 29118990