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343020490 = 25191805371
BaseRepresentation
bin10100011100100…
…001001111001010
3212220110020122121
4110130201033022
51200303123430
654012041454
711333424511
oct2434411712
9786406577
10343020490
1116669840a
1296a6328a
13560b1407
14337b1678
15201aaa7a
hex147213ca

343020490 has 16 divisors (see below), whose sum is σ = 649933920. Its totient is φ = 129986640.

The previous prime is 343020481. The next prime is 343020511. The reversal of 343020490 is 94020343.

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 7 ways as a sum of consecutive naturals, for example, 902496 + ... + 902875.

It is an arithmetic number, because the mean of its divisors is an integer number (40620870).

Almost surely, 2343020490 is an apocalyptic number.

343020490 is a deficient number, since it is larger than the sum of its proper divisors (306913430).

343020490 is a wasteful number, since it uses less digits than its factorization.

343020490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805397.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 343020490 is about 18520.8123471947. The cubic root of 343020490 is about 700.0139384980.

The spelling of 343020490 in words is "three hundred forty-three million, twenty thousand, four hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 1805371 3610742 9026855 18053710 34302049 68604098 171510245 343020490