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512220534 = 23723530249
BaseRepresentation
bin11110100001111…
…101110101110110
31022200211111110220
4132201331311312
52022112024114
6122454355210
715456542220
oct3641756566
91280744426
10512220534
11243153961
1212365bb06
1382173597
144c057410
152ee7e0a9
hex1e87dd76

512220534 has 32 divisors (see below), whose sum is σ = 1221696000. Its totient is φ = 139985472.

The previous prime is 512220521. The next prime is 512220551. The reversal of 512220534 is 435022215.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 264159 + ... + 266090.

It is an arithmetic number, because the mean of its divisors is an integer number (38178000).

Almost surely, 2512220534 is an apocalyptic number.

512220534 is an abundant number, since it is smaller than the sum of its proper divisors (709475466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512220534 is a wasteful number, since it uses less digits than its factorization.

512220534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530284.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 512220534 is about 22632.2896322931. The cubic root of 512220534 is about 800.1148449708.

Adding to 512220534 its reverse (435022215), we get a palindrome (947242749).

The spelling of 512220534 in words is "five hundred twelve million, two hundred twenty thousand, five hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 483 966 530249 1060498 1590747 3181494 3711743 7423486 11135229 12195727 22270458 24391454 36587181 73174362 85370089 170740178 256110267 512220534