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240323490 = 23351180917
BaseRepresentation
bin11100101001100…
…00101110100010
3121202012200212000
432110300232202
5443010322430
635502544430
75645500401
oct1624605642
9552180760
10240323490
11113724660
1268598116
133aa35164
1423cbb638
1516171e60
hexe530ba2

240323490 has 64 divisors (see below), whose sum is σ = 699131520. Its totient is φ = 58259520.

The previous prime is 240323467. The next prime is 240323507. The reversal of 240323490 is 94323042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 37489 + ... + 43428.

It is an arithmetic number, because the mean of its divisors is an integer number (10923930).

Almost surely, 2240323490 is an apocalyptic number.

240323490 is an abundant number, since it is smaller than the sum of its proper divisors (458808030).

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

240323490 is a wasteful number, since it uses less digits than its factorization.

240323490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80944 (or 80938 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 240323490 is about 15502.3704639000. The cubic root of 240323490 is about 621.7255865718.

The spelling of 240323490 in words is "two hundred forty million, three hundred twenty-three thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 495 594 990 1485 2970 80917 161834 242751 404585 485502 728253 809170 890087 1213755 1456506 1780174 2184759 2427510 2670261 3641265 4369518 4450435 5340522 7282530 8010783 8900870 10923795 13351305 16021566 21847590 24032349 26702610 40053915 48064698 80107830 120161745 240323490