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290141388 = 223218234421
BaseRepresentation
bin10001010010110…
…011010011001100
3202012221201011100
4101102303103030
51043234011023
644442423100
710122106155
oct2122632314
9665851140
10290141388
11139860579
1281201a90
13481586c4
142a76892c
151a712c43
hex114b34cc

290141388 has 36 divisors (see below), whose sum is σ = 733981248. Its totient is φ = 96638880.

The previous prime is 290141377. The next prime is 290141413. The reversal of 290141388 is 883141092.

290141388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 63418 + ... + 67838.

It is an arithmetic number, because the mean of its divisors is an integer number (20388368).

Almost surely, 2290141388 is an apocalyptic number.

It is an amenable number.

290141388 is an abundant number, since it is smaller than the sum of its proper divisors (443839860).

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

290141388 is a wasteful number, since it uses less digits than its factorization.

290141388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254 (or 6249 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 290141388 is about 17033.5371546840. The cubic root of 290141388 is about 662.0181476878.

The spelling of 290141388 in words is "two hundred ninety million, one hundred forty-one thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1823 3646 4421 5469 7292 8842 10938 13263 16407 17684 21876 26526 32814 39789 53052 65628 79578 159156 8059483 16118966 24178449 32237932 48356898 72535347 96713796 145070694 290141388