Search a number
-
+
91131311301 = 3224313543069
BaseRepresentation
bin101010011011111011…
…0010111010011000101
322201020002122021110220
41110313312113103011
52443114103430201
6105510512134553
76404214236142
oct1246766272305
9281202567426
1091131311301
1135715282008
12157b3837459
138794316a54
1445a726b3c9
15258584a036
hex1537d974c5

91131311301 has 8 divisors (see below), whose sum is σ = 121562596320. Its totient is φ = 60727116912.

The previous prime is 91131311291. The next prime is 91131311329. The reversal of 91131311301 is 10311313119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91131311301 - 29 = 91131310789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91131311501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6764806 + ... + 6778263.

It is an arithmetic number, because the mean of its divisors is an integer number (15195324540).

Almost surely, 291131311301 is an apocalyptic number.

It is an amenable number.

91131311301 is a deficient number, since it is larger than the sum of its proper divisors (30431285019).

91131311301 is a wasteful number, since it uses less digits than its factorization.

91131311301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13545315.

The product of its (nonzero) digits is 243, while the sum is 24.

The spelling of 91131311301 in words is "ninety-one billion, one hundred thirty-one million, three hundred eleven thousand, three hundred one".

Divisors: 1 3 2243 6729 13543069 40629207 30377103767 91131311301