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512203430 = 2551220343
BaseRepresentation
bin11110100001111…
…001101010100110
31022200210122000102
4132201321222212
52022111002210
6122454144102
715456441314
oct3641715246
91280718012
10512203430
11243142022
12123652032
138216886b
144c0510b4
152ee78ea5
hex1e879aa6

512203430 has 8 divisors (see below), whose sum is σ = 921966192. Its totient is φ = 204881368.

The previous prime is 512203429. The next prime is 512203441. The reversal of 512203430 is 34302215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×5122034303 (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25610162 + ... + 25610181.

It is an arithmetic number, because the mean of its divisors is an integer number (115245774).

Almost surely, 2512203430 is an apocalyptic number.

512203430 is a deficient number, since it is larger than the sum of its proper divisors (409762762).

512203430 is a wasteful number, since it uses less digits than its factorization.

512203430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51220350.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 512203430 is about 22631.9117619347. The cubic root of 512203430 is about 800.1059390955.

Adding to 512203430 its reverse (34302215), we get a palindrome (546505645).

The spelling of 512203430 in words is "five hundred twelve million, two hundred three thousand, four hundred thirty".

Divisors: 1 2 5 10 51220343 102440686 256101715 512203430