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2057204885 = 5411440977
BaseRepresentation
bin111101010011110…
…0111010010010101
312022100222211120112
41322213213102111
513203121024020
6540045012405
7101656644611
oct17247472225
95270884515
102057204885
1196626952a
12494b54105
1326a285cc8
1415730a341
15c09122c5
hex7a9e7495

2057204885 has 4 divisors (see below), whose sum is σ = 2468645868. Its totient is φ = 1645763904.

The previous prime is 2057204789. The next prime is 2057204909. The reversal of 2057204885 is 5884027502.

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 1242844516 + 814360369 = 35254^2 + 28537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2057204885 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205720484 + ... + 205720493.

It is an arithmetic number, because the mean of its divisors is an integer number (617161467).

Almost surely, 22057204885 is an apocalyptic number.

It is an amenable number.

2057204885 is a deficient number, since it is larger than the sum of its proper divisors (411440983).

2057204885 is an equidigital number, since it uses as much as digits as its factorization.

2057204885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411440982.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 2057204885 is about 45356.4205488043. The cubic root of 2057204885 is about 1271.8205821083.

The spelling of 2057204885 in words is "two billion, fifty-seven million, two hundred four thousand, eight hundred eighty-five".

Divisors: 1 5 411440977 2057204885