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5427808868 = 221356952217
BaseRepresentation
bin1010000111000010…
…11100101001100100
3112000021101021000002
411003201130221210
542104004340433
62254332440432
7251335420436
oct50341345144
915007337002
105427808868
112335947159
121075919118
13686688a31
14396c24656
1521b7ae9e8
hex14385ca64

5427808868 has 6 divisors (see below), whose sum is σ = 9498665526. Its totient is φ = 2713904432.

The previous prime is 5427808843. The next prime is 5427808871. The reversal of 5427808868 is 8688087245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4778680384 + 649128484 = 69128^2 + 25478^2 .

It is a super-2 number, since 2×54278088682 = 58922218215078882848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678476105 + ... + 678476112.

It is an arithmetic number, because the mean of its divisors is an integer number (1583110921).

Almost surely, 25427808868 is an apocalyptic number.

It is an amenable number.

5427808868 is a deficient number, since it is larger than the sum of its proper divisors (4070856658).

5427808868 is a wasteful number, since it uses less digits than its factorization.

5427808868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356952221 (or 1356952219 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The square root of 5427808868 is about 73673.6646842004. The cubic root of 5427808868 is about 1757.4171036161.

The spelling of 5427808868 in words is "five billion, four hundred twenty-seven million, eight hundred eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 1356952217 2713904434 5427808868