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131020210110 = 23516327198869
BaseRepresentation
bin111101000000101101…
…0011011111110111110
3110112012000122021210110
41322001122123332332
54121312133210420
6140105001450450
712315542260566
oct1720132337676
9415160567713
10131020210110
1150624547089
12214864a0a26
13c48036995a
1464acb97da6
15361c6d7ee0
hex1e8169bfbe

131020210110 has 64 divisors (see below), whose sum is σ = 317548293120. Its totient is φ = 34595890560.

The previous prime is 131020210049. The next prime is 131020210129. The reversal of 131020210110 is 11012020131.

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 31 ways as a sum of consecutive naturals, for example, 1275756 + ... + 1374624.

It is an arithmetic number, because the mean of its divisors is an integer number (4961692080).

Almost surely, 2131020210110 is an apocalyptic number.

131020210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131020210110 is an abundant number, since it is smaller than the sum of its proper divisors (186528083010).

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

131020210110 is a wasteful number, since it uses less digits than its factorization.

131020210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99313.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 131020210110 its reverse (11012020131), we get a palindrome (142032230241).

The spelling of 131020210110 in words is "one hundred thirty-one billion, twenty million, two hundred ten thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 163 271 326 489 542 813 815 978 1355 1626 1630 2445 2710 4065 4890 8130 44173 88346 98869 132519 197738 220865 265038 296607 441730 494345 593214 662595 988690 1325190 1483035 2966070 16115647 26793499 32231294 48346941 53586998 80380497 80578235 96693882 133967495 160760994 161156470 241734705 267934990 401902485 483469410 803804970 4367340337 8734680674 13102021011 21836701685 26204042022 43673403370 65510105055 131020210110