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67390968 = 23319314549
BaseRepresentation
bin1000000010001…
…00110111111000
311200210211000210
410001010313320
5114223002333
610404231120
71445546061
oct401046770
9150724023
1067390968
1135049917
121a69b4a0
1310c67118
148d43568
155db2a63
hex4044df8

67390968 has 32 divisors (see below), whose sum is σ = 169362000. Its totient is φ = 22345728.

The previous prime is 67390963. The next prime is 67390979. The reversal of 67390968 is 86909376.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67390963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643 + ... + 11906.

Almost surely, 267390968 is an apocalyptic number.

It is an amenable number.

67390968 is an abundant number, since it is smaller than the sum of its proper divisors (101971032).

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

67390968 is a wasteful number, since it uses less digits than its factorization.

67390968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14751 (or 14747 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 67390968 is about 8209.2002046484. The cubic root of 67390968 is about 406.9432959133.

The spelling of 67390968 in words is "sixty-seven million, three hundred ninety thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 193 386 579 772 1158 1544 2316 4632 14549 29098 43647 58196 87294 116392 174588 349176 2807957 5615914 8423871 11231828 16847742 22463656 33695484 67390968