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68146514 = 234073257
BaseRepresentation
bin1000000111111…
…01010101010010
311202020012102222
410003331111102
5114421142024
610432341042
71455143612
oct403752522
9152205388
1068146514
1135515537
121a9a4782
131116cca7
14909ca42
155eb185e
hex40fd552

68146514 has 4 divisors (see below), whose sum is σ = 102219774. Its totient is φ = 34073256.

The previous prime is 68146511. The next prime is 68146517. The reversal of 68146514 is 41564186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41564186 = 220782093.

It is an interprime number because it is at equal distance from previous prime (68146511) and next prime (68146517).

It can be written as a sum of positive squares in only one way, i.e., 65691025 + 2455489 = 8105^2 + 1567^2 .

It is not an unprimeable number, because it can be changed into a prime (68146511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17036627 + ... + 17036630.

Almost surely, 268146514 is an apocalyptic number.

68146514 is a deficient number, since it is larger than the sum of its proper divisors (34073260).

68146514 is a wasteful number, since it uses less digits than its factorization.

68146514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34073259.

The product of its digits is 23040, while the sum is 35.

The square root of 68146514 is about 8255.0901872723. The cubic root of 68146514 is about 408.4584467740.

The spelling of 68146514 in words is "sixty-eight million, one hundred forty-six thousand, five hundred fourteen".

Divisors: 1 2 34073257 68146514