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67142416 = 2411279439
BaseRepresentation
bin1000000000010…
…00001100010000
311200100012002011
410000020030100
5114142024131
610355032304
71443462325
oct400101420
9150305064
1067142416
113499a100
121a59b694
1310baac53
148cbab4c
155d640b1
hex4008310

67142416 has 60 divisors (see below), whose sum is σ = 145129600. Its totient is φ = 30064320.

The previous prime is 67142399. The next prime is 67142419. The reversal of 67142416 is 61424176.

It is not an unprimeable number, because it can be changed into a prime (67142419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152725 + ... + 153163.

Almost surely, 267142416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67142416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72564800).

67142416 is an abundant number, since it is smaller than the sum of its proper divisors (77987184).

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

67142416 is a wasteful number, since it uses less digits than its factorization.

67142416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 531 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 67142416 is about 8194.0475956636. The cubic root of 67142416 is about 406.4423822230.

The spelling of 67142416 in words is "sixty-seven million, one hundred forty-two thousand, four hundred sixteen".

Divisors: 1 2 4 8 11 16 22 44 79 88 121 158 176 242 316 439 484 632 869 878 968 1264 1738 1756 1936 3476 3512 4829 6952 7024 9559 9658 13904 19118 19316 34681 38236 38632 53119 69362 76472 77264 106238 138724 152944 212476 277448 381491 424952 554896 762982 849904 1525964 3051928 4196401 6103856 8392802 16785604 33571208 67142416