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2315553242 = 21157776621
BaseRepresentation
bin1000101000000100…
…1000100111011010
312222101010021220012
42022001020213122
514220240200432
61021434201522
7111244610042
oct21201104732
95871107805
102315553242
11a89084472
125475832a2
132ab95c562
1417d75a722
15d8444cb2
hex8a0489da

2315553242 has 4 divisors (see below), whose sum is σ = 3473329866. Its totient is φ = 1157776620.

The previous prime is 2315553241. The next prime is 2315553257. The reversal of 2315553242 is 2423555132.

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

It can be written as a sum of positive squares in only one way, i.e., 1428764401 + 886788841 = 37799^2 + 29779^2 .

It is a super-3 number, since 3×23155532423 (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2315553199 and 2315553208.

It is not an unprimeable number, because it can be changed into a prime (2315553241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578888309 + ... + 578888312.

Almost surely, 22315553242 is an apocalyptic number.

2315553242 is a deficient number, since it is larger than the sum of its proper divisors (1157776624).

2315553242 is a wasteful number, since it uses less digits than its factorization.

2315553242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157776623.

The product of its digits is 36000, while the sum is 32.

The square root of 2315553242 is about 48120.1957809816. The cubic root of 2315553242 is about 1322.9748566300.

The spelling of 2315553242 in words is "two billion, three hundred fifteen million, five hundred fifty-three thousand, two hundred forty-two".

Divisors: 1 2 1157776621 2315553242