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63380231 = 113560887
BaseRepresentation
bin1111000111000…
…1101100000111
311102021001022222
43301301230013
5112211131411
610142242555
71366503005
oct361615407
9142231288
1063380231
113285a562
121928645b
13101916c5
1485bba75
15586e4db
hex3c71b07

63380231 has 4 divisors (see below), whose sum is σ = 63941232. Its totient is φ = 62819232.

The previous prime is 63380221. The next prime is 63380243. The reversal of 63380231 is 13208336.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63380231 - 210 = 63379207 is a prime.

It is a super-2 number, since 2×633802312 = 8034107363226722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63380231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63380201) 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, 280331 + ... + 280556.

It is an arithmetic number, because the mean of its divisors is an integer number (15985308).

Almost surely, 263380231 is an apocalyptic number.

63380231 is a deficient number, since it is larger than the sum of its proper divisors (561001).

63380231 is a wasteful number, since it uses less digits than its factorization.

63380231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561000.

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

The square root of 63380231 is about 7961.1702029287. The cubic root of 63380231 is about 398.7046241150.

Adding to 63380231 its reverse (13208336), we get a palindrome (76588567).

The spelling of 63380231 in words is "sixty-three million, three hundred eighty thousand, two hundred thirty-one".

Divisors: 1 113 560887 63380231