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131443021032 = 2339157598099
BaseRepresentation
bin111101001101010011…
…1010101010011101000
3110120021111020022100020
41322122213111103220
54123143403133112
6140214544040440
712332165146521
oct1723247252350
9416244208306
10131443021032
11508211821a4
1221584003120
13c519b36c2b
14650cdb9848
1536448a548c
hex1e9a9d54e8

131443021032 has 32 divisors (see below), whose sum is σ = 328643988000. Its totient is φ = 43809482304.

The previous prime is 131443021019. The next prime is 131443021037. The reversal of 131443021032 is 230120344131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 131443020993 and 131443021011.

It is not an unprimeable number, because it can be changed into a prime (131443021037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79282 + ... + 518817.

It is an arithmetic number, because the mean of its divisors is an integer number (10270124625).

Almost surely, 2131443021032 is an apocalyptic number.

131443021032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131443021032 is an abundant number, since it is smaller than the sum of its proper divisors (197200966968).

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

131443021032 is a wasteful number, since it uses less digits than its factorization.

131443021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607265 (or 607261 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131443021032 its reverse (230120344131), we get a palindrome (361563365163).

The spelling of 131443021032 in words is "one hundred thirty-one billion, four hundred forty-three million, twenty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 9157 18314 27471 36628 54942 73256 109884 219768 598099 1196198 1794297 2392396 3588594 4784792 7177188 14354376 5476792543 10953585086 16430377629 21907170172 32860755258 43814340344 65721510516 131443021032