Search a number
-
+
31301031003101 = 50362228689867
BaseRepresentation
bin1110001110111110101101…
…10101011000001111011101
311002211100102200001121002022
413013133112311120033131
513100314002414044401
6150323254540505525
76410265504425546
oct707372665301735
9132740380047068
1031301031003101
119a78768a92122
123616423b4b2a5
1314608a000a2a2
147a2d998334cd
153943294a671b
hex1c77d6d583dd

31301031003101 has 4 divisors (see below), whose sum is σ = 31363259693472. Its totient is φ = 31238802312732.

The previous prime is 31301031003079. The next prime is 31301031003157. The reversal of 31301031003101 is 10130013010313.

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 31301031003101 - 214 = 31301030986717 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 31301031003101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301031003301) 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, 31114344431 + ... + 31114345436.

It is an arithmetic number, because the mean of its divisors is an integer number (7840814923368).

Almost surely, 231301031003101 is an apocalyptic number.

It is an amenable number.

31301031003101 is a deficient number, since it is larger than the sum of its proper divisors (62228690371).

31301031003101 is an equidigital number, since it uses as much as digits as its factorization.

31301031003101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62228690370.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 31301031003101 its reverse (10130013010313), we get a palindrome (41431044013414).

The spelling of 31301031003101 in words is "thirty-one trillion, three hundred one billion, thirty-one million, three thousand, one hundred one".

Divisors: 1 503 62228689867 31301031003101