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1316540541 = 31034260649
BaseRepresentation
bin100111001111000…
…1101000001111101
310101202022012002210
41032132031001331
510144013244131
6334350011033
744424260421
oct11636150175
93352265083
101316540541
11616175438
12308aa6a79
1317c9a9894
14c6bc8b81
157a8ab146
hex4e78d07d

1316540541 has 8 divisors (see below), whose sum is σ = 1772430400. Its totient is φ = 869172192.

The previous prime is 1316540509. The next prime is 1316540557. The reversal of 1316540541 is 1450456131.

It is a happy number.

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

It is not a de Polignac number, because 1316540541 - 25 = 1316540509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1316540499 and 1316540508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316540501) by changing a digit.

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, 2130016 + ... + 2130633.

It is an arithmetic number, because the mean of its divisors is an integer number (221553800).

Almost surely, 21316540541 is an apocalyptic number.

It is an amenable number.

1316540541 is a deficient number, since it is larger than the sum of its proper divisors (455889859).

1316540541 is a wasteful number, since it uses less digits than its factorization.

1316540541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260755.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1316540541 is about 36284.1637770529. The cubic root of 1316540541 is about 1096.0021658565.

Adding to 1316540541 its reverse (1450456131), we get a palindrome (2766996672).

The spelling of 1316540541 in words is "one billion, three hundred sixteen million, five hundred forty thousand, five hundred forty-one".

Divisors: 1 3 103 309 4260649 12781947 438846847 1316540541