Search a number
-
+
91310468 = 22171342801
BaseRepresentation
bin1010111000101…
…00100110000100
320100211001102012
411130110212010
5141333413333
613021033352
72156061164
oct534244604
9210731365
1091310468
11475a69a7
12266b5858
1315bc0582
14c1ac5a4
158039e48
hex5714984

91310468 has 12 divisors (see below), whose sum is σ = 169193052. Its totient is φ = 42969600.

The previous prime is 91310459. The next prime is 91310509. The reversal of 91310468 is 86401319.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40729924 + 50580544 = 6382^2 + 7112^2 .

It is an unprimeable number.

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, 671333 + ... + 671468.

It is an arithmetic number, because the mean of its divisors is an integer number (14099421).

Almost surely, 291310468 is an apocalyptic number.

It is an amenable number.

91310468 is a deficient number, since it is larger than the sum of its proper divisors (77882584).

91310468 is a wasteful number, since it uses less digits than its factorization.

91310468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342822 (or 1342820 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 91310468 is about 9555.6511028815. The cubic root of 91310468 is about 450.3050902280.

The spelling of 91310468 in words is "ninety-one million, three hundred ten thousand, four hundred sixty-eight".

Divisors: 1 2 4 17 34 68 1342801 2685602 5371204 22827617 45655234 91310468