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454994389 = 1999227611
BaseRepresentation
bin11011000111101…
…010100111010101
31011201011002222001
4123013222213111
51412434310024
6113052035301
714163250153
oct3307524725
91151132861
10454994389
11213918023
12108462b31
1373358065
14445dc3d3
1529e28244
hex1b1ea9d5

454994389 has 4 divisors (see below), whose sum is σ = 455224000. Its totient is φ = 454764780.

The previous prime is 454994377. The next prime is 454994411. The reversal of 454994389 is 983499454.

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 454994389 - 211 = 454992341 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 (454994359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111807 + ... + 115804.

It is an arithmetic number, because the mean of its divisors is an integer number (113806000).

Almost surely, 2454994389 is an apocalyptic number.

It is an amenable number.

454994389 is a deficient number, since it is larger than the sum of its proper divisors (229611).

454994389 is a wasteful number, since it uses less digits than its factorization.

454994389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229610.

The product of its digits is 5598720, while the sum is 55.

The square root of 454994389 is about 21330.5974834274. The cubic root of 454994389 is about 769.1340064524.

The spelling of 454994389 in words is "four hundred fifty-four million, nine hundred ninety-four thousand, three hundred eighty-nine".

Divisors: 1 1999 227611 454994389