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67983016 = 238497877
BaseRepresentation
bin1000000110101…
…01011010101000
311201220220011111
410003111122220
5114400424031
610425040104
71453563133
oct403253250
9151826144
1067983016
1135413712
121a926034
131111374a
14905921a
155e7d1b1
hex40d56a8

67983016 has 8 divisors (see below), whose sum is σ = 127468170. Its totient is φ = 33991504.

The previous prime is 67983011. The next prime is 67983029. The reversal of 67983016 is 61038976.

It can be written as a sum of positive squares in only one way, i.e., 48358116 + 19624900 = 6954^2 + 4430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 67983016.

It is not an unprimeable number, because it can be changed into a prime (67983011) 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 as a sum of consecutive naturals, namely, 4248931 + ... + 4248946.

Almost surely, 267983016 is an apocalyptic number.

It is an amenable number.

67983016 is a deficient number, since it is larger than the sum of its proper divisors (59485154).

67983016 is a wasteful number, since it uses less digits than its factorization.

67983016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497883 (or 8497879 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 67983016 is about 8245.1813806611. The cubic root of 67983016 is about 408.1315255827.

The spelling of 67983016 in words is "sixty-seven million, nine hundred eighty-three thousand, sixteen".

Divisors: 1 2 4 8 8497877 16995754 33991508 67983016