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513230205 = 3534215347
BaseRepresentation
bin11110100101110…
…100010101111101
31022202201210111010
4132211310111331
52022341331310
6122532145433
715501245655
oct3645642575
91282653433
10513230205
112437834a4
12123a68279
1382438017
144c23b365
15300cd320
hex1e97457d

513230205 has 8 divisors (see below), whose sum is σ = 821168352. Its totient is φ = 273722768.

The previous prime is 513230171. The next prime is 513230209. The reversal of 513230205 is 502032315.

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 513230205 - 29 = 513229693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513230209) 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, 17107659 + ... + 17107688.

It is an arithmetic number, because the mean of its divisors is an integer number (102646044).

Almost surely, 2513230205 is an apocalyptic number.

It is an amenable number.

513230205 is a deficient number, since it is larger than the sum of its proper divisors (307938147).

513230205 is a wasteful number, since it uses less digits than its factorization.

513230205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34215355.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 513230205 is about 22654.5846353448. The cubic root of 513230205 is about 800.6402192832.

The spelling of 513230205 in words is "five hundred thirteen million, two hundred thirty thousand, two hundred five".

Divisors: 1 3 5 15 34215347 102646041 171076735 513230205