Search a number
-
+
20031310131010 = 252003131013101
BaseRepresentation
bin1001000110111111001110…
…00111111110111101000010
32121220222022102222221220121
410203133213013332331002
510111143110343143020
6110334131250530454
74135133352524443
oct443374707767502
977828272887817
1020031310131010
11642325a398972
1222b6251296a2a
13b23c37c20189
144d37406a32ca
1524b0d8a01baa
hex1237e71fef42

20031310131010 has 8 divisors (see below), whose sum is σ = 36056358235836. Its totient is φ = 8012524052400.

The previous prime is 20031310130969. The next prime is 20031310131011. The reversal of 20031310131010 is 1013101313002.

It can be written as a sum of positive squares in 2 ways, for example, as 17973809639809 + 2057500491201 = 4239553^2 + 1434399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20031310131011) 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, 1001565506541 + ... + 1001565506560.

Almost surely, 220031310131010 is an apocalyptic number.

20031310131010 is a deficient number, since it is larger than the sum of its proper divisors (16025048104826).

20031310131010 is a wasteful number, since it uses less digits than its factorization.

20031310131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003131013108.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 20031310131010 its reverse (1013101313002), we get a palindrome (21044411444012).

The spelling of 20031310131010 in words is "twenty trillion, thirty-one billion, three hundred ten million, one hundred thirty-one thousand, ten".

Divisors: 1 2 5 10 2003131013101 4006262026202 10015655065505 20031310131010