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2057041591 = 11187003781
BaseRepresentation
bin111101010011011…
…1111011010110111
312022100200112120121
41322212333122313
513203100312331
6540041312411
7101655364543
oct17246773267
95270615517
102057041591
11966167880
12494a95707
1326a229897
141572a6a23
15c08cdc11
hex7a9bf6b7

2057041591 has 4 divisors (see below), whose sum is σ = 2244045384. Its totient is φ = 1870037800.

The previous prime is 2057041583. The next prime is 2057041619. The reversal of 2057041591 is 1951407502.

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

It is a cyclic number.

It is not a de Polignac number, because 2057041591 - 23 = 2057041583 is a prime.

It is a super-2 number, since 2×20570415912 = 8462840214207622562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057041561) 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, 93501880 + ... + 93501901.

It is an arithmetic number, because the mean of its divisors is an integer number (561011346).

Almost surely, 22057041591 is an apocalyptic number.

2057041591 is a deficient number, since it is larger than the sum of its proper divisors (187003793).

2057041591 is a wasteful number, since it uses less digits than its factorization.

2057041591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187003792.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2057041591 is about 45354.6203930757. The cubic root of 2057041591 is about 1271.7869302721.

The spelling of 2057041591 in words is "two billion, fifty-seven million, forty-one thousand, five hundred ninety-one".

Divisors: 1 11 187003781 2057041591