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2315135704249 = 971215672
BaseRepresentation
bin100001101100001000110…
…101110101110010111001
322012022202210021022122001
4201230020311311302321
5300412344220013444
64531320400501001
7326156135536144
oct41541065656271
98168683238561
102315135704249
11812930827775
1231483231a761
1313a416073ca4
14800a5c5d05b
154034e3598d4
hex21b08d75cb9

2315135704249 has 9 divisors (see below), whose sum is σ = 2319002338341. Its totient is φ = 2311275514140.

The previous prime is 2315135704237. The next prime is 2315135704283. The reversal of 2315135704249 is 9424075315132.

The square root of 2315135704249 is 1521557.

It is a perfect power (a square), and thus also a powerful number.

2315135704249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2315135704249 - 221 = 2315133607097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2315135704199 and 2315135704208.

It is not an unprimeable number, because it can be changed into a prime (2315135704949) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1477431064 + ... + 1477432630.

Almost surely, 22315135704249 is an apocalyptic number.

2315135704249 is the 1521557-th square number.

2315135704249 is the 760779-th centered octagonal number.

It is an amenable number.

2315135704249 is a deficient number, since it is larger than the sum of its proper divisors (3866634092).

2315135704249 is an frugal number, since it uses more digits than its factorization.

2315135704249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 2315135704249 in words is "two trillion, three hundred fifteen billion, one hundred thirty-five million, seven hundred four thousand, two hundred forty-nine".

Divisors: 1 971 1567 942841 1521557 2455489 1477431847 2384279819 2315135704249