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38834397 = 34768491
BaseRepresentation
bin1001010000100…
…1000011011101
32201001222210000
42110021003131
534420200042
63504204513
7651041550
oct224110335
981058700
1038834397
111aa14948
1211009739
138079144
14522c697
15362174c
hex25090dd

38834397 has 20 divisors (see below), whose sum is σ = 66300256. Its totient is φ = 22190760.

The previous prime is 38834377. The next prime is 38834401. The reversal of 38834397 is 79343883.

It is a happy number.

It is not a de Polignac number, because 38834397 - 26 = 38834333 is a prime.

It is a super-2 number, since 2×388343972 = 3016220780707218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38834377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33679 + ... + 34812.

Almost surely, 238834397 is an apocalyptic number.

It is an amenable number.

38834397 is a deficient number, since it is larger than the sum of its proper divisors (27465859).

38834397 is an equidigital number, since it uses as much as digits as its factorization.

38834397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68510 (or 68501 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 38834397 is about 6231.7250420730. The cubic root of 38834397 is about 338.6404677577.

The spelling of 38834397 in words is "thirty-eight million, eight hundred thirty-four thousand, three hundred ninety-seven".

Divisors: 1 3 7 9 21 27 63 81 189 567 68491 205473 479437 616419 1438311 1849257 4314933 5547771 12944799 38834397