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514981 = 1730293
BaseRepresentation
bin1111101101110100101
3222011102101
41331232211
5112434411
615012101
74243255
oct1755645
9864371
10514981
11321a05
1220a031
1315052c
14d5965
15a28c1
hex7dba5

514981 has 4 divisors (see below), whose sum is σ = 545292. Its totient is φ = 484672.

The previous prime is 514967. The next prime is 515041. The reversal of 514981 is 189415.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 312481 + 202500 = 559^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 514981 - 25 = 514949 is a prime.

It is a super-2 number, since 2×5149812 = 530410860722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15130 + ... + 15163.

It is an arithmetic number, because the mean of its divisors is an integer number (136323).

2514981 is an apocalyptic number.

It is an amenable number.

514981 is a deficient number, since it is larger than the sum of its proper divisors (30311).

514981 is a wasteful number, since it uses less digits than its factorization.

514981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30310.

The product of its digits is 1440, while the sum is 28.

The square root of 514981 is about 717.6217666710. The cubic root of 514981 is about 80.1549600651.

The spelling of 514981 in words is "five hundred fourteen thousand, nine hundred eighty-one".

Divisors: 1 17 30293 514981