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348478990 = 25179194681
BaseRepresentation
bin10100110001010…
…101111000001110
3220021201120022021
4110301111320032
51203202311430
654325040354
711431010506
oct2461257016
9807646267
10348478990
11169786472
12988560ba
1357272ab2
14343d2a06
15208d807a
hex14c55e0e

348478990 has 16 divisors (see below), whose sum is σ = 630769680. Its totient is φ = 138612160.

The previous prime is 348478979. The next prime is 348479041. The reversal of 348478990 is 99874843.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95551 + ... + 99130.

It is an arithmetic number, because the mean of its divisors is an integer number (39423105).

Almost surely, 2348478990 is an apocalyptic number.

348478990 is a deficient number, since it is larger than the sum of its proper divisors (282290690).

348478990 is a wasteful number, since it uses less digits than its factorization.

348478990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194867.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 348478990 is about 18667.5919711140. The cubic root of 348478990 is about 703.7075325591.

The spelling of 348478990 in words is "three hundred forty-eight million, four hundred seventy-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 179 358 895 1790 194681 389362 973405 1946810 34847899 69695798 174239495 348478990