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64214224 = 2419211231
BaseRepresentation
bin1111010011110…
…1010011010000
311110211102100121
43310331103100
5112414323344
610212200024
71406545324
oct364752320
9143742317
1064214224
113327a108
1219609014
13103c41a9
148757984
155986684
hex3d3d4d0

64214224 has 20 divisors (see below), whose sum is σ = 130963840. Its totient is φ = 30417120.

The previous prime is 64214221. The next prime is 64214233. The reversal of 64214224 is 42241246.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64214221) 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, 105312 + ... + 105919.

It is an arithmetic number, because the mean of its divisors is an integer number (6548192).

Almost surely, 264214224 is an apocalyptic number.

It is an amenable number.

64214224 is an abundant number, since it is smaller than the sum of its proper divisors (66749616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64214224 is a wasteful number, since it uses less digits than its factorization.

64214224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211258 (or 211252 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 64214224 is about 8013.3778146297. The cubic root of 64214224 is about 400.4458029647.

The spelling of 64214224 in words is "sixty-four million, two hundred fourteen thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 211231 422462 844924 1689848 3379696 4013389 8026778 16053556 32107112 64214224