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67916965 = 559230227
BaseRepresentation
bin1000000110001…
…01010010100101
311201210112120011
410003011102211
5114341320330
610423410221
71453166434
oct403052245
9151715504
1067916965
1135379026
121a8b3971
13110bc66c
14903d11b
155e6882a
hex40c54a5

67916965 has 8 divisors (see below), whose sum is σ = 82882080. Its totient is φ = 53412432.

The previous prime is 67916923. The next prime is 67916971. The reversal of 67916965 is 56961976.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67916965 - 213 = 67908773 is a prime.

It is a super-3 number, since 3×679169653 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 114819 + ... + 115408.

It is an arithmetic number, because the mean of its divisors is an integer number (10360260).

Almost surely, 267916965 is an apocalyptic number.

It is an amenable number.

67916965 is a deficient number, since it is larger than the sum of its proper divisors (14965115).

67916965 is a wasteful number, since it uses less digits than its factorization.

67916965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230291.

The product of its digits is 612360, while the sum is 49.

The square root of 67916965 is about 8241.1749769071. The cubic root of 67916965 is about 407.9993051539. Note that the first 3 decimals are identical.

The spelling of 67916965 in words is "sixty-seven million, nine hundred sixteen thousand, nine hundred sixty-five".

Divisors: 1 5 59 295 230227 1151135 13583393 67916965