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2857457455 = 51274499933
BaseRepresentation
bin1010101001010001…
…0101011100101111
321101010210212201121
42222110111130233
521323002114310
61151313121411
7130544662516
oct25224253457
97333725647
102857457455
111236a62096
12678b59267
13366cc6b38
141d16dd67d
1511acd90da
hexaa51572f

2857457455 has 8 divisors (see below), whose sum is σ = 3455949312. Its totient is φ = 2267965728.

The previous prime is 2857457411. The next prime is 2857457467. The reversal of 2857457455 is 5547547582.

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 2857457455 - 211 = 2857455407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249332 + ... + 2250601.

It is an arithmetic number, because the mean of its divisors is an integer number (431993664).

Almost surely, 22857457455 is an apocalyptic number.

2857457455 is a deficient number, since it is larger than the sum of its proper divisors (598491857).

2857457455 is a wasteful number, since it uses less digits than its factorization.

2857457455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500065.

The product of its digits is 7840000, while the sum is 52.

The square root of 2857457455 is about 53455.1910949722. The cubic root of 2857457455 is about 1419.0354911254.

The spelling of 2857457455 in words is "two billion, eight hundred fifty-seven million, four hundred fifty-seven thousand, four hundred fifty-five".

Divisors: 1 5 127 635 4499933 22499665 571491491 2857457455