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67712054 = 2174742373
BaseRepresentation
bin1000000100100…
…11010000110110
311201102010110212
410002103100312
5114313241204
610415145422
71451354144
oct402232066
9151363425
1067712054
1135249083
121a815272
131104a307
148dc8594
155e27c6e
hex4093436

67712054 has 16 divisors (see below), whose sum is σ = 109833408. Its totient is φ = 31185792.

The previous prime is 67712041. The next prime is 67712077. The reversal of 67712054 is 45021776.

It is a self number, because there is not a number n which added to its sum of digits gives 67712054.

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, 19589 + ... + 22784.

It is an arithmetic number, because the mean of its divisors is an integer number (6864588).

Almost surely, 267712054 is an apocalyptic number.

67712054 is a deficient number, since it is larger than the sum of its proper divisors (42121354).

67712054 is a wasteful number, since it uses less digits than its factorization.

67712054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42439.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 67712054 is about 8228.7334383853. The cubic root of 67712054 is about 407.5885694543.

The spelling of 67712054 in words is "sixty-seven million, seven hundred twelve thousand, fifty-four".

Divisors: 1 2 17 34 47 94 799 1598 42373 84746 720341 1440682 1991531 3983062 33856027 67712054