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512690339 = 7451316229
BaseRepresentation
bin11110100011110…
…000100010100011
31022201201100221002
4132203300202203
52022222042324
6122512422215
715463540010
oct3643604243
91281640832
10512690339
11243444927
1212384796b
13822a9385
144c13a707
15300233ae
hex1e8f08a3

512690339 has 8 divisors (see below), whose sum is σ = 586097760. Its totient is φ = 439324416.

The previous prime is 512690293. The next prime is 512690371. The reversal of 512690339 is 933096215.

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 512690339 - 28 = 512690083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512690839) 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, 23477 + ... + 39705.

It is an arithmetic number, because the mean of its divisors is an integer number (73262220).

Almost surely, 2512690339 is an apocalyptic number.

512690339 is a deficient number, since it is larger than the sum of its proper divisors (73407421).

512690339 is a wasteful number, since it uses less digits than its factorization.

512690339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20749.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 512690339 is about 22642.6663403408. Note that the first 3 decimals coincide. The cubic root of 512690339 is about 800.3593900868.

The spelling of 512690339 in words is "five hundred twelve million, six hundred ninety thousand, three hundred thirty-nine".

Divisors: 1 7 4513 16229 31591 113603 73241477 512690339