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38610973 = 38999257
BaseRepresentation
bin1001001101001…
…0100000011101
32200122122022001
42103102200131
534341022343
63455322301
7646121302
oct223224035
980578261
1038610973
111a881aa5
1210b20391
137ccb53b
1451b10a9
1535ca44d
hex24d281d

38610973 has 4 divisors (see below), whose sum is σ = 38710620. Its totient is φ = 38511328.

The previous prime is 38610967. The next prime is 38610989. The reversal of 38610973 is 37901683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37901683 = 97390739.

It can be written as a sum of positive squares in 2 ways, for example, as 8602489 + 30008484 = 2933^2 + 5478^2 .

It is a cyclic number.

It is not a de Polignac number, because 38610973 - 29 = 38610461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38610373) 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 3 ways as a sum of consecutive naturals, for example, 49240 + ... + 50017.

It is an arithmetic number, because the mean of its divisors is an integer number (9677655).

Almost surely, 238610973 is an apocalyptic number.

It is an amenable number.

38610973 is a deficient number, since it is larger than the sum of its proper divisors (99647).

38610973 is an equidigital number, since it uses as much as digits as its factorization.

38610973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99646.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 38610973 is about 6213.7728474736. The cubic root of 38610973 is about 337.9897905486.

The spelling of 38610973 in words is "thirty-eight million, six hundred ten thousand, nine hundred seventy-three".

Divisors: 1 389 99257 38610973