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103431324340 = 2255171566217
BaseRepresentation
bin110000001010011111…
…1001100001010110100
3100212222022021200100101
41200110333030022310
53143311404334330
6115303220123444
710321060515361
oct1402477141264
9325868250311
10103431324340
113a957316943
1218066b36584
1399a4682286
145012a63468
152a555cd4ca
hex1814fcc2b4

103431324340 has 12 divisors (see below), whose sum is σ = 217205781156. Its totient is φ = 41372529728.

The previous prime is 103431324329. The next prime is 103431324349. The reversal of 103431324340 is 43423134301.

It can be written as a sum of positive squares in 2 ways, for example, as 47299290256 + 56132034084 = 217484^2 + 236922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103431324299 and 103431324308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103431324349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585783089 + ... + 2585783128.

It is an arithmetic number, because the mean of its divisors is an integer number (18100481763).

Almost surely, 2103431324340 is an apocalyptic number.

103431324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103431324340 is an abundant number, since it is smaller than the sum of its proper divisors (113774456816).

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

103431324340 is a wasteful number, since it uses less digits than its factorization.

103431324340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171566226 (or 5171566224 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 103431324340 its reverse (43423134301), we get a palindrome (146854458641).

The spelling of 103431324340 in words is "one hundred three billion, four hundred thirty-one million, three hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 5171566217 10343132434 20686264868 25857831085 51715662170 103431324340