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113381372837 = 1078110516777
BaseRepresentation
bin110100110011000001…
…1100111001110100101
3101211122202001111220002
41221212003213032211
53324201112412322
6124030420151045
711122460524205
oct1514603471645
9354582044802
10113381372837
11440a2913617
1219b83238485
13a8cbc00435
1456b8302405
152e38dc0c92
hex1a660e73a5

113381372837 has 4 divisors (see below), whose sum is σ = 113391900396. Its totient is φ = 113370845280.

The previous prime is 113381372813. The next prime is 113381372851. The reversal of 113381372837 is 738273183311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 738273183311 = 2332098834057.

It can be written as a sum of positive squares in 2 ways, for example, as 26220029476 + 87161343361 = 161926^2 + 295231^2 .

It is a cyclic number.

It is not a de Polignac number, because 113381372837 - 28 = 113381372581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113381372791 and 113381372800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113381372807) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5247608 + ... + 5269169.

It is an arithmetic number, because the mean of its divisors is an integer number (28347975099).

Almost surely, 2113381372837 is an apocalyptic number.

It is an amenable number.

113381372837 is a deficient number, since it is larger than the sum of its proper divisors (10527559).

113381372837 is a wasteful number, since it uses less digits than its factorization.

113381372837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10527558.

The product of its digits is 508032, while the sum is 47.

The spelling of 113381372837 in words is "one hundred thirteen billion, three hundred eighty-one million, three hundred seventy-two thousand, eight hundred thirty-seven".

Divisors: 1 10781 10516777 113381372837