Search a number
-
+
72141115085 = 51317131498367
BaseRepresentation
bin100001100101111110…
…0100000111011001101
320220012122020100121022
41003023330200323031
52140221111140320
653050254243525
75132503234454
oct1031374407315
9226178210538
1072141115085
112865a862576
1211b93ab65a5
136a58bcc760
1436c5125b9b
151d2359a325
hex10cbf20ecd

72141115085 has 32 divisors (see below), whose sum is σ = 99466278912. Its totient is φ = 49756861440.

The previous prime is 72141115061. The next prime is 72141115099. The reversal of 72141115085 is 58051114127.

It is not a de Polignac number, because 72141115085 - 26 = 72141115021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104429 + ... + 393938.

It is an arithmetic number, because the mean of its divisors is an integer number (3108321216).

Almost surely, 272141115085 is an apocalyptic number.

It is an amenable number.

72141115085 is a deficient number, since it is larger than the sum of its proper divisors (27325163827).

72141115085 is a wasteful number, since it uses less digits than its factorization.

72141115085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498533.

The product of its (nonzero) digits is 11200, while the sum is 35.

The spelling of 72141115085 in words is "seventy-two billion, one hundred forty-one million, one hundred fifteen thousand, eighty-five".

Divisors: 1 5 13 17 65 85 131 221 655 1105 1703 2227 8515 11135 28951 144755 498367 2491835 6478771 8472239 32393855 42361195 65286077 110139107 326430385 550695535 848719001 1109863309 4243595005 5549316545 14428223017 72141115085