Search a number
-
+
3131023402101 = 37334344599567
BaseRepresentation
bin101101100011111111100…
…010011010010001110101
3102002022201101220201211110
4231203333202122101311
5402244313442331401
610354212225425233
7442131451541040
oct55437742322165
912068641821743
103131023402101
11aa79500a2a71
1242699149b219
1319933c7466ba
14ab784281c57
15566a235c9d6
hex2d8ff89a475

3131023402101 has 16 divisors (see below), whose sum is σ = 4772510572544. Its totient is φ = 1788620994864.

The previous prime is 3131023402099. The next prime is 3131023402127. The reversal of 3131023402101 is 1012043201313.

3131023402101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3131023402101 - 21 = 3131023402099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131023402301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22229581 + ... + 22369986.

It is an arithmetic number, because the mean of its divisors is an integer number (298281910784).

Almost surely, 23131023402101 is an apocalyptic number.

It is an amenable number.

3131023402101 is a deficient number, since it is larger than the sum of its proper divisors (1641487170443).

3131023402101 is a wasteful number, since it uses less digits than its factorization.

3131023402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44602920.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3131023402101 its reverse (1012043201313), we get a palindrome (4143066603414).

The spelling of 3131023402101 in words is "three trillion, one hundred thirty-one billion, twenty-three million, four hundred two thousand, one hundred one".

Divisors: 1 3 7 21 3343 10029 23401 70203 44599567 133798701 312196969 936590907 149096352481 447289057443 1043674467367 3131023402101