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82247268 = 2236853939
BaseRepresentation
bin1001110011011…
…11111001100100
312201202121001010
410321233321210
5132023403033
612054502220
72016042645
oct471577144
9181677033
1082247268
1142476654
1223664970
131406922c
14accd6cc
157349863
hex4e6fe64

82247268 has 12 divisors (see below), whose sum is σ = 191910320. Its totient is φ = 27415752.

The previous prime is 82247237. The next prime is 82247281. The reversal of 82247268 is 86274228.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×822472682 = 13529226186927648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3426958 + ... + 3426981.

Almost surely, 282247268 is an apocalyptic number.

It is an amenable number.

82247268 is an abundant number, since it is smaller than the sum of its proper divisors (109663052).

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

82247268 is a wasteful number, since it uses less digits than its factorization.

82247268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853946 (or 6853944 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 82247268 is about 9069.0279523221. The cubic root of 82247268 is about 434.8843978715.

The spelling of 82247268 in words is "eighty-two million, two hundred forty-seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 6853939 13707878 20561817 27415756 41123634 82247268