Search a number
-
+
20103001331 = 714232018171
BaseRepresentation
bin10010101110001110…
…110111010011110011
31220220000100021111212
4102232032313103303
5312132332020311
613122445030335
71311112456220
oct225616672363
956800307455
1020103001331
118586690496
123a905553ab
131b84b2c57a
14d89c58947
157c9d14c8b
hex4ae3b74f3

20103001331 has 8 divisors (see below), whose sum is σ = 22991015424. Its totient is φ = 17219026440.

The previous prime is 20103001307. The next prime is 20103001349. The reversal of 20103001331 is 13310030102.

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

It is not a de Polignac number, because 20103001331 - 214 = 20102984947 is a prime.

It is a super-2 number, since 2×201030013312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103001301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999125 + ... + 1019046.

It is an arithmetic number, because the mean of its divisors is an integer number (2873876928).

Almost surely, 220103001331 is an apocalyptic number.

20103001331 is a deficient number, since it is larger than the sum of its proper divisors (2888014093).

20103001331 is a wasteful number, since it uses less digits than its factorization.

20103001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019601.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20103001331 its reverse (13310030102), we get a palindrome (33413031433).

The spelling of 20103001331 in words is "twenty billion, one hundred three million, one thousand, three hundred thirty-one".

Divisors: 1 7 1423 9961 2018171 14127197 2871857333 20103001331