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15344081 = 171575749
BaseRepresentation
bin111010100010…
…000111010001
31001212120010022
4322202013101
512412002311
61304513225
7244264634
oct72420721
931776108
1015344081
118730265
12517b815
13324314c
142075c1b
1515315db
hexea21d1

15344081 has 8 divisors (see below), whose sum is σ = 16353000. Its totient is φ = 14347008.

The previous prime is 15344053. The next prime is 15344093. The reversal of 15344081 is 18044351.

It can be written as a sum of positive squares in 4 ways, for example, as 173056 + 15171025 = 416^2 + 3895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15344081 is a prime.

It is a super-2 number, since 2×153440812 = 470881643469122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15344081.

It is not an unprimeable number, because it can be changed into a prime (15344041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (2044125).

Almost surely, 215344081 is an apocalyptic number.

It is an amenable number.

15344081 is a deficient number, since it is larger than the sum of its proper divisors (1008919).

15344081 is a wasteful number, since it uses less digits than its factorization.

15344081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 15344081 is about 3917.1521543080. The cubic root of 15344081 is about 248.4926957330.

The spelling of 15344081 in words is "fifteen million, three hundred forty-four thousand, eighty-one".

Divisors: 1 17 157 2669 5749 97733 902593 15344081