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512230797 = 3413486449
BaseRepresentation
bin11110100010000…
…000010110001101
31022200212000120000
4132202000112031
52022112341142
6122454514513
715456614151
oct3642002615
91280760500
10512230797
11243160641
12123665a39
1382178160
144c05b061
152ee8214c
hex1e88058d

512230797 has 20 divisors (see below), whose sum is σ = 824046300. Its totient is φ = 315218304.

The previous prime is 512230793. The next prime is 512230813. The reversal of 512230797 is 797032215.

It can be written as a sum of positive squares in 2 ways, for example, as 138156516 + 374074281 = 11754^2 + 19341^2 .

It is not a de Polignac number, because 512230797 - 22 = 512230793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512230793) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 242172 + ... + 244277.

It is an arithmetic number, because the mean of its divisors is an integer number (41202315).

Almost surely, 2512230797 is an apocalyptic number.

It is an amenable number.

512230797 is a deficient number, since it is larger than the sum of its proper divisors (311815503).

512230797 is a wasteful number, since it uses less digits than its factorization.

512230797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486474 (or 486465 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 512230797 is about 22632.5163647351. The cubic root of 512230797 is about 800.1201887133.

The spelling of 512230797 in words is "five hundred twelve million, two hundred thirty thousand, seven hundred ninety-seven".

Divisors: 1 3 9 13 27 39 81 117 351 1053 486449 1459347 4378041 6323837 13134123 18971511 39402369 56914533 170743599 512230797