Search a number
-
+
3000910291921 = 7115342175457
BaseRepresentation
bin101011101010110100001…
…100010010001111010001
3101121212212121010220012201
4223222310030102033101
5343131331013320141
610214333230123201
7426544232416303
oct53526414221721
911555777126181
103000910291921
11a57751698553
1240571a950501
13189ca52bac89
14a535db71973
15530d9605031
hex2bab43123d1

3000910291921 has 4 divisors (see below), whose sum is σ = 3000952538532. Its totient is φ = 3000868045312.

The previous prime is 3000910291903. The next prime is 3000910291927. The reversal of 3000910291921 is 1291920190003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1326733081921 + 1674177210000 = 1151839^2 + 1293900^2 .

It is a cyclic number.

It is not a de Polignac number, because 3000910291921 - 27 = 3000910291793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3000910291927) 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, 21016576 + ... + 21158881.

It is an arithmetic number, because the mean of its divisors is an integer number (750238134633).

Almost surely, 23000910291921 is an apocalyptic number.

It is an amenable number.

3000910291921 is a deficient number, since it is larger than the sum of its proper divisors (42246611).

3000910291921 is an equidigital number, since it uses as much as digits as its factorization.

3000910291921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42246610.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 3000910291921 in words is "three trillion, nine hundred ten million, two hundred ninety-one thousand, nine hundred twenty-one".

Divisors: 1 71153 42175457 3000910291921