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67264285 = 5114726021
BaseRepresentation
bin1000000001001…
…01111100011101
311200120101020211
410000211330131
5114204424120
610401412421
71444510534
oct400457435
9150511224
1067264285
1134a72720
121a63a111
1310c2156a
148d0d31b
155d8a25a
hex4025f1d

67264285 has 16 divisors (see below), whose sum is σ = 89932032. Its totient is φ = 47876800.

The previous prime is 67264247. The next prime is 67264319. The reversal of 67264285 is 58246276.

It is not a de Polignac number, because 67264285 - 29 = 67263773 is a prime.

It is a super-2 number, since 2×672642852 = 9048968073122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10426 + ... + 15595.

It is an arithmetic number, because the mean of its divisors is an integer number (5620752).

Almost surely, 267264285 is an apocalyptic number.

It is an amenable number.

67264285 is a deficient number, since it is larger than the sum of its proper divisors (22667747).

67264285 is a wasteful number, since it uses less digits than its factorization.

67264285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26084.

The product of its digits is 161280, while the sum is 40.

The square root of 67264285 is about 8201.4806590030. The cubic root of 67264285 is about 406.6881423607.

Subtracting from 67264285 its reverse (58246276), we obtain a square (9018009 = 30032).

It can be divided in two parts, 6726 and 4285, that added together give a palindrome (11011).

The spelling of 67264285 in words is "sixty-seven million, two hundred sixty-four thousand, two hundred eighty-five".

Divisors: 1 5 11 47 55 235 517 2585 26021 130105 286231 1222987 1431155 6114935 13452857 67264285