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67013328 = 24312710993
BaseRepresentation
bin1111111110100…
…0101011010000
311200002122000010
43333220223100
5114123411303
610352154520
71442414064
oct377505320
9150078003
1067013328
1134911118
121a538a40
1310b64275
148c85aa4
155d3ac03
hex3fe8ad0

67013328 has 40 divisors (see below), whose sum is σ = 174496768. Its totient is φ = 22159872.

The previous prime is 67013281. The next prime is 67013369. The reversal of 67013328 is 82331076.

It is a super-2 number, since 2×670133282 = 8981572259271168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67013295 and 67013304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600 + ... + 11592.

Almost surely, 267013328 is an apocalyptic number.

It is an amenable number.

67013328 is an abundant number, since it is smaller than the sum of its proper divisors (107483440).

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

67013328 is a wasteful number, since it uses less digits than its factorization.

67013328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11131 (or 11125 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 67013328 is about 8186.1668685655. The cubic root of 67013328 is about 406.1817397580.

The spelling of 67013328 in words is "sixty-seven million, thirteen thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 127 254 381 508 762 1016 1524 2032 3048 6096 10993 21986 32979 43972 65958 87944 131916 175888 263832 527664 1396111 2792222 4188333 5584444 8376666 11168888 16753332 22337776 33506664 67013328