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2054893917 = 3684964639
BaseRepresentation
bin111101001111011…
…0011000101011101
312022012122102112010
41322132303011131
513202023101132
6535523301433
7101631211236
oct17236630535
95265572463
102054893917
11964a3023a
1249421a879
1326995717b
14156ca808d
15c06076cc
hex7a7b315d

2054893917 has 4 divisors (see below), whose sum is σ = 2739858560. Its totient is φ = 1369929276.

The previous prime is 2054893879. The next prime is 2054893943. The reversal of 2054893917 is 7193984502.

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 not a de Polignac number, because 2054893917 - 28 = 2054893661 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 (2054893957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342482317 + ... + 342482322.

It is an arithmetic number, because the mean of its divisors is an integer number (684964640).

Almost surely, 22054893917 is an apocalyptic number.

It is an amenable number.

2054893917 is a deficient number, since it is larger than the sum of its proper divisors (684964643).

2054893917 is an equidigital number, since it uses as much as digits as its factorization.

2054893917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684964642.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 2054893917 is about 45330.9377467530. The cubic root of 2054893917 is about 1271.3441690330.

The spelling of 2054893917 in words is "two billion, fifty-four million, eight hundred ninety-three thousand, nine hundred seventeen".

Divisors: 1 3 684964639 2054893917