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63830231 is a prime number
BaseRepresentation
bin1111001101111…
…1100011010111
311110002220121122
43303133203113
5112320031411
610200034155
71403355653
oct363374327
9143086548
1063830231
1133037663
121946295b
13102bb48a
148697a63
15590c9db
hex3cdf8d7

63830231 has 2 divisors, whose sum is σ = 63830232. Its totient is φ = 63830230.

The previous prime is 63830213. The next prime is 63830279. The reversal of 63830231 is 13203836.

Together with previous prime (63830213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-63830231 is a prime.

It is a super-2 number, since 2×638302312 = 8148596779026722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63830231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63830201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31915115 + 31915116.

It is an arithmetic number, because the mean of its divisors is an integer number (31915116).

Almost surely, 263830231 is an apocalyptic number.

63830231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63830231 is an equidigital number, since it uses as much as digits as its factorization.

63830231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 63830231 is about 7989.3823916496. The cubic root of 63830231 is about 399.6460013882.

The spelling of 63830231 in words is "sixty-three million, eight hundred thirty thousand, two hundred thirty-one".