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551310245 = 5557197957
BaseRepresentation
bin100000110111000…
…101001110100101
31102102101110110222
4200313011032211
52112113411440
6130412254125
716443026333
oct4067051645
91372343428
10551310245
11263222602
12134771345
138a2ab9a5
1453310b53
15336012b5
hex20dc53a5

551310245 has 8 divisors (see below), whose sum is σ = 662763384. Its totient is φ = 440254144.

The previous prime is 551310239. The next prime is 551310247. The reversal of 551310245 is 542013155.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 545783044 = 2351^2 + 23362^2 .

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 551310245 - 214 = 551293861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551310247) 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, 96194 + ... + 101763.

It is an arithmetic number, because the mean of its divisors is an integer number (82845423).

Almost surely, 2551310245 is an apocalyptic number.

It is an amenable number.

551310245 is a deficient number, since it is larger than the sum of its proper divisors (111453139).

551310245 is a wasteful number, since it uses less digits than its factorization.

551310245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198519.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 551310245 is about 23479.9966993183. The cubic root of 551310245 is about 819.9713677292.

The spelling of 551310245 in words is "five hundred fifty-one million, three hundred ten thousand, two hundred forty-five".

Divisors: 1 5 557 2785 197957 989785 110262049 551310245