Search a number
-
+
513030439 = 31107154667
BaseRepresentation
bin11110100101000…
…011100100100111
31022202100122110101
4132211003210213
52022313433224
6122524004531
715466454365
oct3645034447
91282318411
10513030439
112436573a9
12123990747
138239810c
144c1c8635
153008e044
hex1e943927

513030439 has 8 divisors (see below), whose sum is σ = 534532608. Its totient is φ = 491837880.

The previous prime is 513030431. The next prime is 513030449. The reversal of 513030439 is 934030315.

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 513030439 - 23 = 513030431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513030431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74017 + ... + 80650.

It is an arithmetic number, because the mean of its divisors is an integer number (66816576).

Almost surely, 2513030439 is an apocalyptic number.

513030439 is a deficient number, since it is larger than the sum of its proper divisors (21502169).

513030439 is a wasteful number, since it uses less digits than its factorization.

513030439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154805.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 513030439 is about 22650.1752531851. The cubic root of 513030439 is about 800.5363273400.

The spelling of 513030439 in words is "five hundred thirteen million, thirty thousand, four hundred thirty-nine".

Divisors: 1 31 107 3317 154667 4794677 16549369 513030439