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239808494 = 21719735803
BaseRepresentation
bin11100100101100…
…10111111101110
3121201020112102002
432102302333232
5442342332434
635443532302
75641224062
oct1622627756
9551215362
10239808494
11113402742
126838a092
133a8b4923
1423bc5aa2
15160be57e
hexe4b2fee

239808494 has 16 divisors (see below), whose sum is σ = 382816368. Its totient is φ = 112275072.

The previous prime is 239808479. The next prime is 239808559. The reversal of 239808494 is 494808932.

239808494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2398084942 = 115016227589096072, which contains 22 as substring.

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, 11204 + ... + 24599.

It is an arithmetic number, because the mean of its divisors is an integer number (23926023).

Almost surely, 2239808494 is an apocalyptic number.

239808494 is a deficient number, since it is larger than the sum of its proper divisors (143007874).

239808494 is a wasteful number, since it uses less digits than its factorization.

239808494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36019.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 239808494 is about 15485.7513217796. The cubic root of 239808494 is about 621.2811645210.

The spelling of 239808494 in words is "two hundred thirty-nine million, eight hundred eight thousand, four hundred ninety-four".

Divisors: 1 2 17 34 197 394 3349 6698 35803 71606 608651 1217302 7053191 14106382 119904247 239808494