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529212993 = 3176404331
BaseRepresentation
bin11111100010110…
…010011001000001
31100212210210202020
4133202302121001
52040434303433
6124302512053
716054144011
oct3742623101
91325723666
10529212993
112517aa611
12129295629
1385842aaa
14503dbc41
15316d8cb3
hex1f8b2641

529212993 has 4 divisors (see below), whose sum is σ = 705617328. Its totient is φ = 352808660.

The previous prime is 529212979. The next prime is 529213001. The reversal of 529212993 is 399212925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 529212993 - 214 = 529196609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (529212973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88202163 + ... + 88202168.

It is an arithmetic number, because the mean of its divisors is an integer number (176404332).

Almost surely, 2529212993 is an apocalyptic number.

It is an amenable number.

529212993 is a deficient number, since it is larger than the sum of its proper divisors (176404335).

529212993 is a wasteful number, since it uses less digits than its factorization.

529212993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176404334.

The product of its digits is 87480, while the sum is 42.

The square root of 529212993 is about 23004.6298166260. The cubic root of 529212993 is about 808.8664696292.

The spelling of 529212993 in words is "five hundred twenty-nine million, two hundred twelve thousand, nine hundred ninety-three".

Divisors: 1 3 176404331 529212993