Search a number
-
+
67816701 = 3218614049
BaseRepresentation
bin1000000101011…
…00110011111101
311201121110000200
410002230303331
5114330113301
610421314113
71452301221
oct402546375
9151543020
1067816701
113530a767
121a865939
1311085b34
149014781
155e48c86
hex40accfd

67816701 has 12 divisors (see below), whose sum is σ = 98034300. Its totient is φ = 45175680.

The previous prime is 67816691. The next prime is 67816709. The reversal of 67816701 is 10761876.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4995225 + 62821476 = 2235^2 + 7926^2 .

It is not a de Polignac number, because 67816701 - 25 = 67816669 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67816709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14725 + ... + 18773.

It is an arithmetic number, because the mean of its divisors is an integer number (8169525).

Almost surely, 267816701 is an apocalyptic number.

It is an amenable number.

67816701 is a deficient number, since it is larger than the sum of its proper divisors (30217599).

67816701 is a wasteful number, since it uses less digits than its factorization.

67816701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916 (or 5913 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 67816701 is about 8235.0896169987. The cubic root of 67816701 is about 407.7984334515.

The spelling of 67816701 in words is "sixty-seven million, eight hundred sixteen thousand, seven hundred one".

Divisors: 1 3 9 1861 4049 5583 12147 16749 36441 7535189 22605567 67816701