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67828068 = 223271124469
BaseRepresentation
bin1000000101011…
…11100101100100
311201122000121200
410002233211210
5114330444233
610421442500
71452346320
oct402574544
9151560550
1067828068
1135318260
121a870430
131108b069
149018980
155e4c313
hex40af964

67828068 has 72 divisors (see below), whose sum is σ = 213769920. Its totient is φ = 17616960.

The previous prime is 67828051. The next prime is 67828073. The reversal of 67828068 is 86082876.

It is a super-2 number, since 2×678280682 = 9201293617225248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9463 + ... + 15006.

Almost surely, 267828068 is an apocalyptic number.

It is an amenable number.

67828068 is an abundant number, since it is smaller than the sum of its proper divisors (145941852).

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

67828068 is a wasteful number, since it uses less digits than its factorization.

67828068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24497 (or 24492 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 67828068 is about 8235.7797445051. The cubic root of 67828068 is about 407.8212163637.

The spelling of 67828068 in words is "sixty-seven million, eight hundred twenty-eight thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 126 132 154 198 231 252 308 396 462 693 924 1386 2772 24469 48938 73407 97876 146814 171283 220221 269159 293628 342566 440442 513849 538318 685132 807477 880884 1027698 1076636 1541547 1614954 1884113 2055396 2422431 3083094 3229908 3768226 4844862 5652339 6166188 7536452 9689724 11304678 16957017 22609356 33914034 67828068