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5309855831 = 72395334607
BaseRepresentation
bin1001111000111110…
…11111100001010111
3111201001102121212002
410330133133201113
541333310341311
62234520345515
7245404013150
oct47437374127
914631377762
105309855831
112285303305
12104231529b
136680ca737
143852bc927
1521126093b
hex13c7df857

5309855831 has 16 divisors (see below), whose sum is σ = 6339078144. Its totient is φ = 4348728384.

The previous prime is 5309855809. The next prime is 5309855849. The reversal of 5309855831 is 1385589035.

It is not a de Polignac number, because 5309855831 - 218 = 5309593687 is a prime.

It is a super-2 number, since 2×53098558312 = 56389137892009401122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5309855231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136130 + ... + 170736.

It is an arithmetic number, because the mean of its divisors is an integer number (396192384).

Almost surely, 25309855831 is an apocalyptic number.

5309855831 is a deficient number, since it is larger than the sum of its proper divisors (1029222313).

5309855831 is a wasteful number, since it uses less digits than its factorization.

5309855831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35590.

The product of its (nonzero) digits is 648000, while the sum is 47.

The square root of 5309855831 is about 72868.7575782653. The cubic root of 5309855831 is about 1744.5934725119.

The spelling of 5309855831 in words is "five billion, three hundred nine million, eight hundred fifty-five thousand, eight hundred thirty-one".

Divisors: 1 7 23 161 953 6671 21919 34607 153433 242249 795961 5571727 32980471 230863297 758550833 5309855831