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507743242 = 21931315397
BaseRepresentation
bin11110010000111…
…000110000001010
31022101102000210021
4132100320300022
52014440240432
6122214411054
715403513666
oct3620706012
91271360707
10507743242
11240676016
12122060a8a
13812666b6
144b60d8a6
152e897697
hex1e438c0a

507743242 has 8 divisors (see below), whose sum is σ = 765561636. Its totient is φ = 252556032.

The previous prime is 507743237. The next prime is 507743297. The reversal of 507743242 is 242347705.

It can be written as a sum of positive squares in 2 ways, for example, as 457489321 + 50253921 = 21389^2 + 7089^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 507743198 and 507743207.

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, 657313 + ... + 658084.

Almost surely, 2507743242 is an apocalyptic number.

507743242 is a deficient number, since it is larger than the sum of its proper divisors (257818394).

507743242 is a wasteful number, since it uses less digits than its factorization.

507743242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315592.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 507743242 is about 22533.1587222032. The cubic root of 507743242 is about 797.7767658022.

The spelling of 507743242 in words is "five hundred seven million, seven hundred forty-three thousand, two hundred forty-two".

Divisors: 1 2 193 386 1315397 2630794 253871621 507743242