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131223334230 = 2335486012349
BaseRepresentation
bin111101000110110000…
…1010010110101010110
3110112201011212001201000
41322031201102311112
54122221133143410
6140141055244130
712323556636312
oct1721541226526
9415634761630
10131223334230
115071917325a
1221522519646
13c4b3478c41
1464cbb50b42
15363045cdc0
hex1e8d852d56

131223334230 has 32 divisors (see below), whose sum is σ = 349928892000. Its totient is φ = 34992889056.

The previous prime is 131223334219. The next prime is 131223334243. The reversal of 131223334230 is 32433322131.

131223334230 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 233 + 3 + 423 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131223334194 and 131223334203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243005905 + ... + 243006444.

It is an arithmetic number, because the mean of its divisors is an integer number (10935277875).

Almost surely, 2131223334230 is an apocalyptic number.

131223334230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131223334230 is an abundant number, since it is smaller than the sum of its proper divisors (218705557770).

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

131223334230 is a wasteful number, since it uses less digits than its factorization.

131223334230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486012365 (or 486012359 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 131223334230 its reverse (32433322131), we get a palindrome (163656656361).

The spelling of 131223334230 in words is "one hundred thirty-one billion, two hundred twenty-three million, three hundred thirty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 486012349 972024698 1458037047 2430061745 2916074094 4374111141 4860123490 7290185235 8748222282 13122333423 14580370470 21870555705 26244666846 43741111410 65611667115 131223334230