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67285772 = 22145111593
BaseRepresentation
bin1000000001010…
…11001100001100
311200121110201122
410000223030030
5114211121042
610402100112
71444630301
oct400531414
9150543648
1067285772
1134a87884
121a64a638
1310c2b288
148d170a8
155d917d2
hex402b30c

67285772 has 12 divisors (see below), whose sum is σ = 117841416. Its totient is φ = 33616800.

The previous prime is 67285753. The next prime is 67285831. The reversal of 67285772 is 27758276.

It is a happy number.

It is a super-2 number, since 2×672857722 = 9054750227271968, 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, 8 + ... + 11600.

It is an arithmetic number, because the mean of its divisors is an integer number (9820118).

Almost surely, 267285772 is an apocalyptic number.

It is an amenable number.

67285772 is a deficient number, since it is larger than the sum of its proper divisors (50555644).

67285772 is a wasteful number, since it uses less digits than its factorization.

67285772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048 (or 13046 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 67285772 is about 8202.7905007991. The cubic root of 67285772 is about 406.7314420990.

The spelling of 67285772 in words is "sixty-seven million, two hundred eighty-five thousand, seven hundred seventy-two".

Divisors: 1 2 4 1451 2902 5804 11593 23186 46372 16821443 33642886 67285772