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514881481 = 226912
BaseRepresentation
bin11110101100000…
…111011111001001
31022212211200121111
4132230013133021
52023302201411
6123031410321
715521264122
oct3654073711
91285750544
10514881481
11244701094
121245239a1
13828957ca
144c54b049
1530307721
hex1eb077c9

514881481 has 3 divisors (see below), whose sum is σ = 514904173. Its totient is φ = 514858790.

The previous prime is 514881467. The next prime is 514881509. The reversal of 514881481 is 184188415.

The square root of 514881481 is 22691.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 184188415 = 536837683.

It is not a de Polignac number, because 514881481 - 227 = 380663753 is a prime.

It is a super-2 number, since 2×5148814812 = 530205878953506722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (514881181) 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 2 ways as a sum of consecutive naturals, for example, 11346 + ... + 34036.

Almost surely, 2514881481 is an apocalyptic number.

514881481 is the 22691-st square number.

514881481 is the 11346-th centered octagonal number.

It is an amenable number.

514881481 is a deficient number, since it is larger than the sum of its proper divisors (22692).

514881481 is an frugal number, since it uses more digits than its factorization.

514881481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45382 (or 22691 counting only the distinct ones).

The product of its digits is 40960, while the sum is 40.

The cubic root of 514881481 is about 801.4979647306.

The spelling of 514881481 in words is "five hundred fourteen million, eight hundred eighty-one thousand, four hundred eighty-one".

Divisors: 1 22691 514881481