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38361121 = 317121013
BaseRepresentation
bin1001001001010…
…1100000100001
32200011221120021
42102111200201
534310023441
63450113441
7644031001
oct222254041
980157507
1038361121
111a721307
1210a1b881
137c418b6
145148001
15357b3d1
hex2495821

38361121 has 4 divisors (see below), whose sum is σ = 38482452. Its totient is φ = 38239792.

The previous prime is 38361077. The next prime is 38361139. The reversal of 38361121 is 12116383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12116383 = 53228611.

It can be written as a sum of positive squares in 2 ways, for example, as 17338896 + 21022225 = 4164^2 + 4585^2 .

It is a cyclic number.

It is not a de Polignac number, because 38361121 - 213 = 38352929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38361181) 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, 60190 + ... + 60823.

It is an arithmetic number, because the mean of its divisors is an integer number (9620613).

Almost surely, 238361121 is an apocalyptic number.

It is an amenable number.

38361121 is a deficient number, since it is larger than the sum of its proper divisors (121331).

38361121 is a wasteful number, since it uses less digits than its factorization.

38361121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121330.

The product of its digits is 864, while the sum is 25.

The square root of 38361121 is about 6193.6355236646. The cubic root of 38361121 is about 337.2591671909.

It can be divided in two parts, 383 and 61121, that added together give a square (61504 = 2482).

The spelling of 38361121 in words is "thirty-eight million, three hundred sixty-one thousand, one hundred twenty-one".

Divisors: 1 317 121013 38361121