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507131023 = 7304923761
BaseRepresentation
bin11110001110100…
…011010010001111
31022100020220222111
4132032203102033
52014311143043
6122153324451
715365354050
oct3616432217
91270226874
10507131023
11240298053
12121a06727
13810b0b39
144b4d0727
152e7c609d
hex1e3a348f

507131023 has 8 divisors (see below), whose sum is σ = 579792800. Its totient is φ = 434522880.

The previous prime is 507131021. The next prime is 507131041. The reversal of 507131023 is 320131705.

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

It is a cyclic number.

It is not a de Polignac number, because 507131023 - 21 = 507131021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 507130985 and 507131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507131021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9463 + ... + 33223.

It is an arithmetic number, because the mean of its divisors is an integer number (72474100).

Almost surely, 2507131023 is an apocalyptic number.

507131023 is a deficient number, since it is larger than the sum of its proper divisors (72661777).

507131023 is a wasteful number, since it uses less digits than its factorization.

507131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26817.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 507131023 is about 22519.5697783062. The cubic root of 507131023 is about 797.4559930906.

Adding to 507131023 its reverse (320131705), we get a palindrome (827262728).

The spelling of 507131023 in words is "five hundred seven million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 7 3049 21343 23761 166327 72447289 507131023