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1310902209020 = 22565545110451
BaseRepresentation
bin10011000100110111110…
…111000100100111111100
311122022200000210001110102
4103010313313010213330
5132434211431142040
62442115315500232
7163465243632335
oct23046767044774
94568600701412
101310902209020
11465a50138198
1219208a5b7678
13968049a28b1
144763b48128c
15241760e9515
hex13137dc49fc

1310902209020 has 12 divisors (see below), whose sum is σ = 2752894638984. Its totient is φ = 524360883600.

The previous prime is 1310902209017. The next prime is 1310902209049. The reversal of 1310902209020 is 209022090131.

It is a super-2 number, since 2×13109022090202 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32772555206 + ... + 32772555245.

It is an arithmetic number, because the mean of its divisors is an integer number (229407886582).

Almost surely, 21310902209020 is an apocalyptic number.

1310902209020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310902209020 is an abundant number, since it is smaller than the sum of its proper divisors (1441992429964).

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

1310902209020 is a wasteful number, since it uses less digits than its factorization.

1310902209020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65545110460 (or 65545110458 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

Adding to 1310902209020 its reverse (209022090131), we get a palindrome (1519924299151).

The spelling of 1310902209020 in words is "one trillion, three hundred ten billion, nine hundred two million, two hundred nine thousand, twenty".

Divisors: 1 2 4 5 10 20 65545110451 131090220902 262180441804 327725552255 655451104510 1310902209020