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38059409 = 208118289
BaseRepresentation
bin1001000100101…
…1110110010001
32122121121200202
42101023312101
534220400114
63435424545
7641333243
oct221136621
978547622
1038059409
111a535663
12108b5155
137b6747b
1450aa093
15351bcde
hex244bd91

38059409 has 4 divisors (see below), whose sum is σ = 38079780. Its totient is φ = 38039040.

The previous prime is 38059403. The next prime is 38059453. The reversal of 38059409 is 90495083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28890625 + 9168784 = 5375^2 + 3028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38059409 is a prime.

It is a super-2 number, since 2×380594092 = 2897037226858562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38059403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064 + ... + 11225.

It is an arithmetic number, because the mean of its divisors is an integer number (9519945).

Almost surely, 238059409 is an apocalyptic number.

It is an amenable number.

38059409 is a deficient number, since it is larger than the sum of its proper divisors (20371).

38059409 is a wasteful number, since it uses less digits than its factorization.

38059409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 38059409 is about 6169.2308272588. The cubic root of 38059409 is about 336.3726526104.

The spelling of 38059409 in words is "thirty-eight million, fifty-nine thousand, four hundred nine".

Divisors: 1 2081 18289 38059409