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531302245 = 5402726387
BaseRepresentation
bin11111101010110…
…000011101100101
31101000201221122221
4133222300131211
52042003132440
6124415352341
716110665065
oct3752603545
91330657587
10531302245
112529a7271
12129b226b1
13860c4a36
14507c33a5
153199cd4a
hex1fab0765

531302245 has 8 divisors (see below), whose sum is σ = 637745184. Its totient is φ = 424920144.

The previous prime is 531302197. The next prime is 531302279. The reversal of 531302245 is 542203135.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-531302245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942 + ... + 33328.

It is an arithmetic number, because the mean of its divisors is an integer number (79718148).

Almost surely, 2531302245 is an apocalyptic number.

It is an amenable number.

531302245 is a deficient number, since it is larger than the sum of its proper divisors (106442939).

531302245 is a wasteful number, since it uses less digits than its factorization.

531302245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30419.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 531302245 is about 23049.9944685460. The cubic root of 531302245 is about 809.9294990206.

The spelling of 531302245 in words is "five hundred thirty-one million, three hundred two thousand, two hundred forty-five".

Divisors: 1 5 4027 20135 26387 131935 106260449 531302245