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67142692 = 22109153997
BaseRepresentation
bin1000000000010…
…00010000100100
311200100012110101
410000020100210
5114142031232
610355033444
71443463201
oct400102044
9150305411
1067142692
113499a331
121a59b884
1310bab106
148cbaca8
155d641e7
hex4008424

67142692 has 12 divisors (see below), whose sum is σ = 118578460. Its totient is φ = 33263136.

The previous prime is 67142659. The next prime is 67142701. The reversal of 67142692 is 29624176.

It can be written as a sum of positive squares in 2 ways, for example, as 49787136 + 17355556 = 7056^2 + 4166^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 76563 + ... + 77434.

Almost surely, 267142692 is an apocalyptic number.

It is an amenable number.

67142692 is a deficient number, since it is larger than the sum of its proper divisors (51435768).

67142692 is a wasteful number, since it uses less digits than its factorization.

67142692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154110 (or 154108 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 67142692 is about 8194.0644371398. The cubic root of 67142692 is about 406.4429391385.

The spelling of 67142692 in words is "sixty-seven million, one hundred forty-two thousand, six hundred ninety-two".

Divisors: 1 2 4 109 218 436 153997 307994 615988 16785673 33571346 67142692