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557099807149 = 1688633299123
BaseRepresentation
bin10000001101101011011…
…11000111000110101101
31222020222020120110022201
420012311233013012231
533111420022312044
61103532250141501
755151311141324
oct10066557070655
91866866513281
10557099807149
111a52a0354766
128bb77721891
13406c3a9a502
141cd6c8510bb
15e7589597d4
hex81b5bc71ad

557099807149 has 4 divisors (see below), whose sum is σ = 557103275136. Its totient is φ = 557096339164.

The previous prime is 557099807129. The next prime is 557099807161. The reversal of 557099807149 is 941708990755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 557099807149 - 215 = 557099774381 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 (557099807129) 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, 1480699 + ... + 1818424.

It is an arithmetic number, because the mean of its divisors is an integer number (139275818784).

Almost surely, 2557099807149 is an apocalyptic number.

It is an amenable number.

557099807149 is a deficient number, since it is larger than the sum of its proper divisors (3467987).

557099807149 is a wasteful number, since it uses less digits than its factorization.

557099807149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467986.

The product of its (nonzero) digits is 28576800, while the sum is 64.

The spelling of 557099807149 in words is "five hundred fifty-seven billion, ninety-nine million, eight hundred seven thousand, one hundred forty-nine".

Divisors: 1 168863 3299123 557099807149