Search a number
-
+
2101031310012 = 223409428082989
BaseRepresentation
bin11110100100101111001…
…110011001001010111100
321102212010111002011120220
4132210233032121022330
5233410403003410022
64245111144341340
7304536341320215
oct36445716311274
97385114064526
102101031310012
11740051445408
1229b23b174850
1312318492430b
147399488c40c
15399bca3085c
hex1e92f3992bc

2101031310012 has 24 divisors (see below), whose sum is σ = 4914392725200. Its totient is φ = 698631436416.

The previous prime is 2101031309987. The next prime is 2101031310013. The reversal of 2101031310012 is 2100131301012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101031309973 and 2101031310000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101031310013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214036587 + ... + 214046402.

It is an arithmetic number, because the mean of its divisors is an integer number (204766363550).

Almost surely, 22101031310012 is an apocalyptic number.

It is an amenable number.

2101031310012 is an abundant number, since it is smaller than the sum of its proper divisors (2813361415188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101031310012 is a wasteful number, since it uses less digits than its factorization.

2101031310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428083405 (or 428083403 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 2101031310012 its reverse (2100131301012), we get a palindrome (4201162611024).

The spelling of 2101031310012 in words is "two trillion, one hundred one billion, thirty-one million, three hundred ten thousand, twelve".

Divisors: 1 2 3 4 6 12 409 818 1227 1636 2454 4908 428082989 856165978 1284248967 1712331956 2568497934 5136995868 175085942501 350171885002 525257827503 700343770004 1050515655006 2101031310012