Search a number
-
+
75656801 = 116877891
BaseRepresentation
bin1001000001001…
…10111001100001
312021100202121202
410200212321201
5123332004201
611301330545
71606033523
oct440467141
9167322552
1075656801
1139785090
1221406a55
131289c54c
14a095a13
156996c6b
hex4826e61

75656801 has 4 divisors (see below), whose sum is σ = 82534704. Its totient is φ = 68778900.

The previous prime is 75656797. The next prime is 75656809. The reversal of 75656801 is 10865657.

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.

It is a cyclic number.

It is not a de Polignac number, because 75656801 - 22 = 75656797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75656809) 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, 3438935 + ... + 3438956.

It is an arithmetic number, because the mean of its divisors is an integer number (20633676).

Almost surely, 275656801 is an apocalyptic number.

It is an amenable number.

75656801 is a deficient number, since it is larger than the sum of its proper divisors (6877903).

75656801 is a wasteful number, since it uses less digits than its factorization.

75656801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877902.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 75656801 is about 8698.0918022288. The cubic root of 75656801 is about 422.9437951952.

The spelling of 75656801 in words is "seventy-five million, six hundred fifty-six thousand, eight hundred one".

Divisors: 1 11 6877891 75656801