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290780942 = 2195174521
BaseRepresentation
bin10001010101001…
…111011100001110
3202021011012110112
4101111033130032
51043414442232
644504240022
710130411564
oct2125173416
9667135415
10290780942
1113a158031
1281470012
134832083a
142a893a34
151a7dc4b2
hex1154f70e

290780942 has 8 divisors (see below), whose sum is σ = 436400832. Its totient is φ = 145314000.

The previous prime is 290780933. The next prime is 290780951. The reversal of 290780942 is 249087092.

It is an interprime number because it is at equal distance from previous prime (290780933) and next prime (290780951).

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

It is a self number, because there is not a number n which added to its sum of digits gives 290780942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33359 + ... + 41162.

It is an arithmetic number, because the mean of its divisors is an integer number (54550104).

Almost surely, 2290780942 is an apocalyptic number.

290780942 is a deficient number, since it is larger than the sum of its proper divisors (145619890).

290780942 is a wasteful number, since it uses less digits than its factorization.

290780942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76474.

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

The square root of 290780942 is about 17052.3001967477. The cubic root of 290780942 is about 662.5042160406.

The spelling of 290780942 in words is "two hundred ninety million, seven hundred eighty thousand, nine hundred forty-two".

Divisors: 1 2 1951 3902 74521 149042 145390471 290780942