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290130488 = 23312694349
BaseRepresentation
bin10001010010110…
…000101000111000
3202012221011012122
4101102300220320
51043233133423
644442300412
710122032324
oct2122605070
9665834178
10290130488
1113985336a
12811b7708
134815375b
142a764984
151a70e8c8
hex114b0a38

290130488 has 32 divisors (see below), whose sum is σ = 563760000. Its totient is φ = 139831680.

The previous prime is 290130481. The next prime is 290130493. The reversal of 290130488 is 884031092.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290130481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64538 + ... + 68886.

It is an arithmetic number, because the mean of its divisors is an integer number (17617500).

Almost surely, 2290130488 is an apocalyptic number.

It is an amenable number.

290130488 is a deficient number, since it is larger than the sum of its proper divisors (273629512).

290130488 is a wasteful number, since it uses less digits than its factorization.

290130488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 290130488 is about 17033.2171946465. The cubic root of 290130488 is about 662.0098573755.

The spelling of 290130488 in words is "two hundred ninety million, one hundred thirty thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 31 62 124 248 269 538 1076 2152 4349 8339 8698 16678 17396 33356 34792 66712 134819 269638 539276 1078552 1169881 2339762 4679524 9359048 36266311 72532622 145065244 290130488