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5557218287 = 191297225509
BaseRepresentation
bin1010010110011110…
…00110101111101111
3112100021212221100112
411023033012233233
542340121441122
62315234250235
7254466401405
oct51317065757
915307787315
105557218287
1123a19a5395
1210b112697b
136a742875a
143aa0ad475
15227d232e2
hex14b3c6bef

5557218287 has 8 divisors (see below), whose sum is σ = 5854239600. Its totient is φ = 5260650624.

The previous prime is 5557218241. The next prime is 5557218311. The reversal of 5557218287 is 7828127555.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5557218287 - 28 = 5557218031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557208287) 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, 88112 + ... + 137397.

It is an arithmetic number, because the mean of its divisors is an integer number (731779950).

Almost surely, 25557218287 is an apocalyptic number.

5557218287 is a deficient number, since it is larger than the sum of its proper divisors (297021313).

5557218287 is a wasteful number, since it uses less digits than its factorization.

5557218287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226825.

The product of its digits is 1568000, while the sum is 50.

The square root of 5557218287 is about 74546.7523571617. The cubic root of 5557218287 is about 1771.2742892616.

The spelling of 5557218287 in words is "five billion, five hundred fifty-seven million, two hundred eighteen thousand, two hundred eighty-seven".

Divisors: 1 19 1297 24643 225509 4284671 292485173 5557218287