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131542416 = 24321974637
BaseRepresentation
bin1111101011100…
…10110110010000
3100011112001021100
413311302312100
5232133324131
621015224400
73155043405
oct765626620
9304461240
10131542416
1168285845
1238078100
1321338865
14136822ac
15b8357e6
hex7d72d90

131542416 has 60 divisors (see below), whose sum is σ = 370084572. Its totient is φ = 43615488.

The previous prime is 131542403. The next prime is 131542417. The reversal of 131542416 is 614245131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90326016 + 41216400 = 9504^2 + 6420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131542416.

It is not an unprimeable number, because it can be changed into a prime (131542417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26050 + ... + 30686.

Almost surely, 2131542416 is an apocalyptic number.

131542416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131542416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185042286).

131542416 is an abundant number, since it is smaller than the sum of its proper divisors (238542156).

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

131542416 is a wasteful number, since it uses less digits than its factorization.

131542416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848 (or 4839 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 131542416 is about 11469.1942175551. The cubic root of 131542416 is about 508.5753087037.

Adding to 131542416 its reverse (614245131), we get a palindrome (745787547).

The spelling of 131542416 in words is "one hundred thirty-one million, five hundred forty-two thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 197 394 591 788 1182 1576 1773 2364 3152 3546 4637 4728 7092 9274 9456 13911 14184 18548 27822 28368 37096 41733 55644 74192 83466 111288 166932 222576 333864 667728 913489 1826978 2740467 3653956 5480934 7307912 8221401 10961868 14615824 16442802 21923736 32885604 43847472 65771208 131542416