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67919914 = 2291171033
BaseRepresentation
bin1000000110001…
…10000000101010
311201210200121101
410003012000222
5114341414124
610423432014
71453211146
oct403060052
9151720541
1067919914
1135380267
121a8b560a
13110c0aca
149040226
155e69644
hex40c602a

67919914 has 8 divisors (see below), whose sum is σ = 105393060. Its totient is φ = 32788896.

The previous prime is 67919911. The next prime is 67919933. The reversal of 67919914 is 41991976.

It can be written as a sum of positive squares in 2 ways, for example, as 60450625 + 7469289 = 7775^2 + 2733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×679199142 = 9226229435534792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67919911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585459 + ... + 585574.

Almost surely, 267919914 is an apocalyptic number.

67919914 is a deficient number, since it is larger than the sum of its proper divisors (37473146).

67919914 is a wasteful number, since it uses less digits than its factorization.

67919914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171064.

The product of its digits is 122472, while the sum is 46.

The square root of 67919914 is about 8241.3538936269. The cubic root of 67919914 is about 408.0052102692.

The spelling of 67919914 in words is "sixty-seven million, nine hundred nineteen thousand, nine hundred fourteen".

Divisors: 1 2 29 58 1171033 2342066 33959957 67919914