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4312540531 = 131263726251
BaseRepresentation
bin1000000010000110…
…00010010101110011
3102010112210202110101
410001003002111303
532313002244111
61551532413231
7211603663315
oct40103022563
912115722411
104312540531
111913353592
12a04317217
135395c0540
142cca6d7b5
151a390ebc1
hex1010c2573

4312540531 has 8 divisors (see below), whose sum is σ = 4644818864. Its totient is φ = 3980340000.

The previous prime is 4312540499. The next prime is 4312540543. The reversal of 4312540531 is 1350452134.

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

It is not a de Polignac number, because 4312540531 - 25 = 4312540499 is a prime.

It is a super-2 number, since 2×43125405312 = 37196011663035523922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4312540531.

It is not an unprimeable number, because it can be changed into a prime (4312540931) 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, 151156 + ... + 177406.

It is an arithmetic number, because the mean of its divisors is an integer number (580602358).

Almost surely, 24312540531 is an apocalyptic number.

4312540531 is a deficient number, since it is larger than the sum of its proper divisors (332278333).

4312540531 is a wasteful number, since it uses less digits than its factorization.

4312540531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38901.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 4312540531 is about 65669.9362798534. The cubic root of 4312540531 is about 1627.7126171981.

Adding to 4312540531 its reverse (1350452134), we get a palindrome (5662992665).

The spelling of 4312540531 in words is "four billion, three hundred twelve million, five hundred forty thousand, five hundred thirty-one".

Divisors: 1 13 12637 26251 164281 341263 331733887 4312540531