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500142317 = 1747128627
BaseRepresentation
bin11101110011111…
…001000011101101
31021212002212021112
4131303321003231
52011014023232
6121343441405
715252065603
oct3563710355
91255085245
10500142317
11237354364
1211b5b6265
137c804acc
144a5d1873
152dd954b2
hex1dcf90ed

500142317 has 4 divisors (see below), whose sum is σ = 500188416. Its totient is φ = 500096220.

The previous prime is 500142299. The next prime is 500142341. The reversal of 500142317 is 713241005.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 713241005 = 5142648201.

It is a cyclic number.

It is not a de Polignac number, because 500142317 - 214 = 500125933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 500142292 and 500142301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500142347) 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, 3158 + ... + 31784.

It is an arithmetic number, because the mean of its divisors is an integer number (125047104).

Almost surely, 2500142317 is an apocalyptic number.

It is an amenable number.

500142317 is a deficient number, since it is larger than the sum of its proper divisors (46099).

500142317 is a wasteful number, since it uses less digits than its factorization.

500142317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46098.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 500142317 is about 22363.8618534456. The cubic root of 500142317 is about 793.7758235590.

The spelling of 500142317 in words is "five hundred million, one hundred forty-two thousand, three hundred seventeen".

Divisors: 1 17471 28627 500142317