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5481083449 = 18130282229
BaseRepresentation
bin1010001101011001…
…01011001000111001
3112010222121212222201
411012230223020321
542211124132244
62303514350201
7252553304062
oct50654531071
915128555881
105481083449
112362a24136
12108b72b361
1369471c75a
1439dd31569
152212d4ad4
hex146b2b239

5481083449 has 4 divisors (see below), whose sum is σ = 5511365860. Its totient is φ = 5450801040.

The previous prime is 5481083431. The next prime is 5481083473. The reversal of 5481083449 is 9443801845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9443801845 = 51888760369.

It can be written as a sum of positive squares in 2 ways, for example, as 2652971049 + 2828112400 = 51507^2 + 53180^2 .

It is a cyclic number.

It is not a de Polignac number, because 5481083449 - 25 = 5481083417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5481083399 and 5481083408.

It is not an unprimeable number, because it can be changed into a prime (5481083479) 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, 15140934 + ... + 15141295.

It is an arithmetic number, because the mean of its divisors is an integer number (1377841465).

Almost surely, 25481083449 is an apocalyptic number.

It is an amenable number.

5481083449 is a deficient number, since it is larger than the sum of its proper divisors (30282411).

5481083449 is a wasteful number, since it uses less digits than its factorization.

5481083449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30282410.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 5481083449 is about 74034.3396607277. The cubic root of 5481083449 is about 1763.1481457323.

The spelling of 5481083449 in words is "five billion, four hundred eighty-one million, eighty-three thousand, four hundred forty-nine".

Divisors: 1 181 30282229 5481083449