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531192017 = 3770920249
BaseRepresentation
bin11111101010010…
…101100011010001
31101000112100110102
4133222111203101
52041441121032
6124413142145
716110025526
oct3752254321
91330470412
10531192017
11252931474
12129a8a955
1386086805
145079514d
153197a362
hex1fa958d1

531192017 has 8 divisors (see below), whose sum is σ = 546345000. Its totient is φ = 516081024.

The previous prime is 531191951. The next prime is 531192041. The reversal of 531192017 is 710291135.

It can be written as a sum of positive squares in 4 ways, for example, as 49126081 + 482065936 = 7009^2 + 21956^2 .

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 531192017 - 214 = 531175633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531192617) 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, 16109 + ... + 36357.

It is an arithmetic number, because the mean of its divisors is an integer number (68293125).

Almost surely, 2531192017 is an apocalyptic number.

It is an amenable number.

531192017 is a deficient number, since it is larger than the sum of its proper divisors (15152983).

531192017 is a wasteful number, since it uses less digits than its factorization.

531192017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20995.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 531192017 is about 23047.6032810355. The cubic root of 531192017 is about 809.8734837711.

The spelling of 531192017 in words is "five hundred thirty-one million, one hundred ninety-two thousand, seventeen".

Divisors: 1 37 709 20249 26233 749213 14356541 531192017