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315150052513 = 1916211644653
BaseRepresentation
bin1001001011000000110…
…10000010110010100001
31010010110100102102210011
410211200122002302201
520130411403140023
6400440011204521
731524466150552
oct4454032026241
91103410372704
10315150052513
11111721a96a5a
12510b3146741
132394579471a
1411379266329
1582e776350d
hex4960682ca1

315150052513 has 4 divisors (see below), whose sum is σ = 315151888788. Its totient is φ = 315148216240.

The previous prime is 315150052501. The next prime is 315150052517. The reversal of 315150052513 is 315250051513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133216240144 + 181933812369 = 364988^2 + 426537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315150052513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315150052517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630706 + ... + 1013947.

It is an arithmetic number, because the mean of its divisors is an integer number (78787972197).

Almost surely, 2315150052513 is an apocalyptic number.

It is an amenable number.

315150052513 is a deficient number, since it is larger than the sum of its proper divisors (1836275).

315150052513 is a wasteful number, since it uses less digits than its factorization.

315150052513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836274.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 315150052513 in words is "three hundred fifteen billion, one hundred fifty million, fifty-two thousand, five hundred thirteen".

Divisors: 1 191621 1644653 315150052513