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514021231 = 17191591397
BaseRepresentation
bin11110101000110…
…101011101101111
31022211012222120101
4132220311131233
52023042134411
6123001131531
715511052113
oct3650653557
91284188511
10514021231
11244173839
12124189ba7
1382654099
144c3a5743
15301d78c1
hex1ea3576f

514021231 has 8 divisors (see below), whose sum is σ = 572903280. Its totient is φ = 458322048.

The previous prime is 514021177. The next prime is 514021237. The reversal of 514021231 is 132120415.

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

It is a cyclic number.

It is not a de Polignac number, because 514021231 - 217 = 513890159 is a prime.

It is a super-2 number, since 2×5140212312 = 528435651837510722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 514021199 and 514021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514021237) 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 7 ways as a sum of consecutive naturals, for example, 795376 + ... + 796021.

It is an arithmetic number, because the mean of its divisors is an integer number (71612910).

Almost surely, 2514021231 is an apocalyptic number.

514021231 is a deficient number, since it is larger than the sum of its proper divisors (58882049).

514021231 is a wasteful number, since it uses less digits than its factorization.

514021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591433.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 514021231 is about 22672.0363223068. The cubic root of 514021231 is about 801.0513422233.

Adding to 514021231 its reverse (132120415), we get a palindrome (646141646).

The spelling of 514021231 in words is "five hundred fourteen million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 17 19 323 1591397 27053749 30236543 514021231