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290740892 = 221329192799
BaseRepresentation
bin10001010101000…
…101101010011100
3202021002011112012
4101111011222130
51043412202032
644503330352
710130154041
oct2125055234
9667064465
10290740892
1113a12aa32
12814509b8
1348308540
142a8831c8
151a7d06b2
hex11545a9c

290740892 has 24 divisors (see below), whose sum is σ = 566832000. Its totient is φ = 129560256.

The previous prime is 290740883. The next prime is 290740897. The reversal of 290740892 is 298047092.

290740892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290740897) 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 7 ways as a sum of consecutive naturals, for example, 94892 + ... + 97907.

It is an arithmetic number, because the mean of its divisors is an integer number (23618000).

Almost surely, 2290740892 is an apocalyptic number.

It is an amenable number.

290740892 is a deficient number, since it is larger than the sum of its proper divisors (276091108).

290740892 is a wasteful number, since it uses less digits than its factorization.

290740892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192845 (or 192843 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 290740892 is about 17051.1258279329. The cubic root of 290740892 is about 662.4737985128.

The spelling of 290740892 in words is "two hundred ninety million, seven hundred forty thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 26 29 52 58 116 377 754 1508 192799 385598 771196 2506387 5012774 5591171 10025548 11182342 22364684 72685223 145370446 290740892