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38330890 = 2513237613
BaseRepresentation
bin1001001000111…
…0001000001010
32200010102002121
42102032020022
534303042030
63445321454
7643543603
oct222161012
980112077
1038330890
111a700624
1210a0628a
137c30c00
14513adaa
15357247a
hex248e20a

38330890 has 48 divisors (see below), whose sum is σ = 76855608. Its totient is φ = 13747968.

The previous prime is 38330867. The next prime is 38330891. The reversal of 38330890 is 9803383.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1595169 + 36735721 = 1263^2 + 6061^2 .

It is not an unprimeable number, because it can be changed into a prime (38330891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62224 + ... + 62836.

Almost surely, 238330890 is an apocalyptic number.

38330890 is an abundant number, since it is smaller than the sum of its proper divisors (38524718).

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

38330890 is a wasteful number, since it uses less digits than its factorization.

38330890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 38330890 is about 6191.1945535575. The cubic root of 38330890 is about 337.1705500262.

The spelling of 38330890 in words is "thirty-eight million, three hundred thirty thousand, eight hundred ninety".

Divisors: 1 2 5 10 13 26 37 65 74 130 169 185 338 370 481 613 845 962 1226 1690 2405 3065 4810 6130 6253 7969 12506 15938 22681 31265 39845 45362 62530 79690 103597 113405 207194 226810 294853 517985 589706 1035970 1474265 2948530 3833089 7666178 19165445 38330890