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131033233020 = 22356551333367
BaseRepresentation
bin111101000001000110…
…0000111011001111100
3110112012221010220212110
41322002030013121330
54121324001424040
6140110144534020
712316061050344
oct1720214073174
9415187126773
10131033233020
1150630931418
122148a921310
13c482c79411
1464b07c7d24
15361d90b980
hex1e8230767c

131033233020 has 48 divisors (see below), whose sum is σ = 366950158848. Its totient is φ = 34936756800.

The previous prime is 131033232991. The next prime is 131033233021. The reversal of 131033233020 is 20332330131.

It is a super-3 number, since 3×1310332330203 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033233021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226377 + ... + 559743.

It is an arithmetic number, because the mean of its divisors is an integer number (7644794976).

Almost surely, 2131033233020 is an apocalyptic number.

131033233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131033233020 is an abundant number, since it is smaller than the sum of its proper divisors (235916925828).

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

131033233020 is a wasteful number, since it uses less digits than its factorization.

131033233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339930 (or 339928 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 131033233020 its reverse (20332330131), we get a palindrome (151365563151).

The spelling of 131033233020 in words is "one hundred thirty-one billion, thirty-three million, two hundred thirty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6551 13102 19653 26204 32755 39306 65510 78612 98265 131020 196530 333367 393060 666734 1000101 1333468 1666835 2000202 3333670 4000404 5000505 6667340 10001010 20002020 2183887217 4367774434 6551661651 8735548868 10919436085 13103323302 21838872170 26206646604 32758308255 43677744340 65516616510 131033233020