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38318641 = 415231787
BaseRepresentation
bin1001001000101…
…1001000110001
32200002210021221
42102023020301
534302144031
63445145041
7643463104
oct222131061
980083257
1038318641
111a6a23a9
12109bb181
137c2846a
14513673b
15356da11
hex248b231

38318641 has 8 divisors (see below), whose sum is σ = 39350304. Its totient is φ = 37291680.

The previous prime is 38318617. The next prime is 38318647. The reversal of 38318641 is 14681383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38318641 - 27 = 38318513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38318597 and 38318606.

It is not an unprimeable number, because it can be changed into a prime (38318647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20550 + ... + 22336.

It is an arithmetic number, because the mean of its divisors is an integer number (4918788).

Almost surely, 238318641 is an apocalyptic number.

It is an amenable number.

38318641 is a deficient number, since it is larger than the sum of its proper divisors (1031663).

38318641 is a wasteful number, since it uses less digits than its factorization.

38318641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its digits is 13824, while the sum is 34.

The square root of 38318641 is about 6190.2052470011. The cubic root of 38318641 is about 337.1346308491.

The spelling of 38318641 in words is "thirty-eight million, three hundred eighteen thousand, six hundred forty-one".

Divisors: 1 41 523 1787 21443 73267 934601 38318641