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249076385 = 5448111117
BaseRepresentation
bin11101101100010…
…01101010100001
3122100200101120022
432312021222201
51002230421020
640414323225
76113054135
oct1666115241
9570611508
10249076385
11118662858
126b4b9515
133c7ab19c
14251193c5
1516d00625
hexed89aa1

249076385 has 8 divisors (see below), whose sum is σ = 298985256. Its totient is φ = 199198720.

The previous prime is 249076381. The next prime is 249076393. The reversal of 249076385 is 583670942.

249076385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15108769 + 233967616 = 3887^2 + 15296^2 .

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

It is not a de Polignac number, because 249076385 - 22 = 249076381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249076381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16847 + ... + 27963.

It is an arithmetic number, because the mean of its divisors is an integer number (37373157).

Almost surely, 2249076385 is an apocalyptic number.

It is an amenable number.

249076385 is a deficient number, since it is larger than the sum of its proper divisors (49908871).

249076385 is a wasteful number, since it uses less digits than its factorization.

249076385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15603.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 249076385 is about 15782.1540038108. The cubic root of 249076385 is about 629.1837796222.

The spelling of 249076385 in words is "two hundred forty-nine million, seventy-six thousand, three hundred eighty-five".

Divisors: 1 5 4481 11117 22405 55585 49815277 249076385