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5469287557 = 19727762881
BaseRepresentation
bin1010001011111111…
…01011010010000101
3112010011102121001211
411011333223102011
542200114200212
62302413451421
7252351114526
oct50577532205
915104377054
105469287557
1123572a7768
1210877a0b71
1369214c636
1439c54084d
152202549a7
hex145feb485

5469287557 has 4 divisors (see below), whose sum is σ = 5497050636. Its totient is φ = 5441524480.

The previous prime is 5469287501. The next prime is 5469287581. The reversal of 5469287557 is 7557829645.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5012781601 + 456505956 = 70801^2 + 21366^2 .

It is a cyclic number.

It is not a de Polignac number, because 5469287557 - 27 = 5469287429 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5469287657) 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, 13881244 + ... + 13881637.

It is an arithmetic number, because the mean of its divisors is an integer number (1374262659).

Almost surely, 25469287557 is an apocalyptic number.

It is an amenable number.

5469287557 is a deficient number, since it is larger than the sum of its proper divisors (27763079).

5469287557 is a wasteful number, since it uses less digits than its factorization.

5469287557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27763078.

The product of its digits is 21168000, while the sum is 58.

The square root of 5469287557 is about 73954.6317481197. The cubic root of 5469287557 is about 1761.8824079784.

The spelling of 5469287557 in words is "five billion, four hundred sixty-nine million, two hundred eighty-seven thousand, five hundred fifty-seven".

Divisors: 1 197 27762881 5469287557