Search a number
-
+
13131322320102 = 2372373135097577
BaseRepresentation
bin1011111100010101111111…
…0011010110010011100110
31201111100020102121121001220
42333011133303112103212
53210120422003220402
643532240213401210
72523464260040400
oct277053763262346
951440212547056
1013131322320102
114202a65131558
121580b31339206
137433807b137c
143357b8d81b70
1517b898648dbc
hexbf15fcd64e6

13131322320102 has 192 divisors, whose sum is σ = 31542355592640. Its totient is φ = 3631115464704.

The previous prime is 13131322320097. The next prime is 13131322320169. The reversal of 13131322320102 is 20102322313131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1733046538 + ... + 1733054114.

It is an arithmetic number, because the mean of its divisors is an integer number (164283102045).

Almost surely, 213131322320102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13131322320102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15771177796320).

13131322320102 is an abundant number, since it is smaller than the sum of its proper divisors (18411033272538).

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

13131322320102 is a wasteful number, since it uses less digits than its factorization.

13131322320102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455 (or 8448 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13131322320102 its reverse (20102322313131), we get a palindrome (33233644633233).

The spelling of 13131322320102 in words is "thirteen trillion, one hundred thirty-one billion, three hundred twenty-two million, three hundred twenty thousand, one hundred two".