Search a number
-
+
76112681 = 233309247
BaseRepresentation
bin1001000100101…
…10001100101001
312022012220222012
410202112030221
5123441101211
611315205305
71612642601
oct442261451
9168186865
1076112681
1139a66647
12215a6835
13129cbbb8
14a173c01
156a36d8b
hex4896329

76112681 has 4 divisors (see below), whose sum is σ = 79421952. Its totient is φ = 72803412.

The previous prime is 76112677. The next prime is 76112683. The reversal of 76112681 is 18621167.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18621167 = 59315613.

It is a cyclic number.

It is not a de Polignac number, because 76112681 - 22 = 76112677 is a prime.

It is a super-2 number, since 2×761126812 = 11586280418015522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76112683) 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 in 3 ways as a sum of consecutive naturals, for example, 1654601 + ... + 1654646.

It is an arithmetic number, because the mean of its divisors is an integer number (19855488).

Almost surely, 276112681 is an apocalyptic number.

It is an amenable number.

76112681 is a deficient number, since it is larger than the sum of its proper divisors (3309271).

76112681 is a wasteful number, since it uses less digits than its factorization.

76112681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309270.

The product of its digits is 4032, while the sum is 32.

The square root of 76112681 is about 8724.2581919611. The cubic root of 76112681 is about 423.7915957694.

The spelling of 76112681 in words is "seventy-six million, one hundred twelve thousand, six hundred eighty-one".

Divisors: 1 23 3309247 76112681