Search a number
-
+
91300945141 = 713042992163
BaseRepresentation
bin101010100000111110…
…1011101110011110101
322201122220211120100201
41111001331131303311
52443441020221031
6105535412040501
76411344141350
oct1250175356365
9281586746321
1091300945141
11357a200446a
1215840603131
1387c04cb4c3
1445c19c7297
1525956a6d61
hex1541f5dcf5

91300945141 has 4 divisors (see below), whose sum is σ = 104343937312. Its totient is φ = 78257952972.

The previous prime is 91300945139. The next prime is 91300945163. The reversal of 91300945141 is 14154900319.

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 91300945141 - 21 = 91300945139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91300945141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91300945441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6521496075 + ... + 6521496088.

It is an arithmetic number, because the mean of its divisors is an integer number (26085984328).

Almost surely, 291300945141 is an apocalyptic number.

It is an amenable number.

91300945141 is a deficient number, since it is larger than the sum of its proper divisors (13042992171).

91300945141 is a wasteful number, since it uses less digits than its factorization.

91300945141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13042992170.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 91300945141 in words is "ninety-one billion, three hundred million, nine hundred forty-five thousand, one hundred forty-one".

Divisors: 1 7 13042992163 91300945141