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20252065 = 54786179
BaseRepresentation
bin100110101000…
…0010110100001
31102002220121111
41031100112201
520141031230
62002023321
7334065631
oct115202641
942086544
1020252065
1110482749
126947b41
134271092
1429926c1
151ba092a
hex13505a1

20252065 has 8 divisors (see below), whose sum is σ = 24819840. Its totient is φ = 15856752.

The previous prime is 20252053. The next prime is 20252077. The reversal of 20252065 is 56025202.

It is an interprime number because it is at equal distance from previous prime (20252053) and next prime (20252077).

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 20252065 - 25 = 20252033 is a prime.

It is a super-2 number, since 2×202520652 = 820292273528450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42855 + ... + 43324.

It is an arithmetic number, because the mean of its divisors is an integer number (3102480).

Almost surely, 220252065 is an apocalyptic number.

It is an amenable number.

20252065 is a deficient number, since it is larger than the sum of its proper divisors (4567775).

20252065 is an equidigital number, since it uses as much as digits as its factorization.

20252065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86231.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20252065 is about 4500.2294385953. The cubic root of 20252065 is about 272.5773536816.

Adding to 20252065 its reverse (56025202), we get a palindrome (76277267).

The spelling of 20252065 in words is "twenty million, two hundred fifty-two thousand, sixty-five".

Divisors: 1 5 47 235 86179 430895 4050413 20252065