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64223103 = 3731472099
BaseRepresentation
bin1111010011111…
…1011101111111
311110211212112110
43310333131333
5112420114403
610212305103
71406613240
oct364773577
9143755473
1064223103
113328584a
1219612193
13103c8249
14875acc7
155989103
hex3d3f77f

64223103 has 32 divisors (see below), whose sum is σ = 103219200. Its totient is φ = 34742880.

The previous prime is 64223077. The next prime is 64223111. The reversal of 64223103 is 30132246.

It is a happy number.

It is not a de Polignac number, because 64223103 - 213 = 64214911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 64223103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64223113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29548 + ... + 31646.

It is an arithmetic number, because the mean of its divisors is an integer number (3225600).

Almost surely, 264223103 is an apocalyptic number.

64223103 is a deficient number, since it is larger than the sum of its proper divisors (38996097).

64223103 is a wasteful number, since it uses less digits than its factorization.

64223103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 64223103 is about 8013.9318065479. The cubic root of 64223103 is about 400.4642588675.

Adding to 64223103 its reverse (30132246), we get a palindrome (94355349).

The spelling of 64223103 in words is "sixty-four million, two hundred twenty-three thousand, one hundred three".

Divisors: 1 3 7 21 31 47 93 141 217 329 651 987 1457 2099 4371 6297 10199 14693 30597 44079 65069 98653 195207 295959 455483 690571 1366449 2071713 3058243 9174729 21407701 64223103