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2305531423 = 131391275889
BaseRepresentation
bin1000100101101011…
…1001111000011111
312221200021010112201
42021122321320133
514210204001143
61020435312331
7111063456646
oct21132717037
95850233481
102305531423
11a83459978
1254414b6a7
132a9860aa0
1417c2ac35d
15d761564d
hex896b9e1f

2305531423 has 8 divisors (see below), whose sum is σ = 2500744400. Its totient is φ = 2112870528.

The previous prime is 2305531409. The next prime is 2305531427. The reversal of 2305531423 is 3241355032.

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 2305531423 - 25 = 2305531391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2305531391 and 2305531400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305531427) 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, 636138 + ... + 639751.

It is an arithmetic number, because the mean of its divisors is an integer number (312593050).

Almost surely, 22305531423 is an apocalyptic number.

2305531423 is a deficient number, since it is larger than the sum of its proper divisors (195212977).

2305531423 is a wasteful number, since it uses less digits than its factorization.

2305531423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276041.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2305531423 is about 48015.9496729993. The cubic root of 2305531423 is about 1321.0634648007.

Adding to 2305531423 its reverse (3241355032), we get a palindrome (5546886455).

The spelling of 2305531423 in words is "two billion, three hundred five million, five hundred thirty-one thousand, four hundred twenty-three".

Divisors: 1 13 139 1807 1275889 16586557 177348571 2305531423