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811454429 = 6911174319
BaseRepresentation
bin110000010111011…
…100111111011101
32002112220011012202
4300113130333131
53130213020204
6212304141245
726052151232
oct6027347735
92075804182
10811454429
113870547a5
121a7907825
13cc163766
1479aab789
154b38ae1e
hex305dcfdd

811454429 has 4 divisors (see below), whose sum is σ = 812629440. Its totient is φ = 810279420.

The previous prime is 811454359. The next prime is 811454443. The reversal of 811454429 is 924454118.

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 a de Polignac number, because none of the positive numbers 2k-811454429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 811454392 and 811454401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811454129) 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, 586469 + ... + 587850.

It is an arithmetic number, because the mean of its divisors is an integer number (203157360).

Almost surely, 2811454429 is an apocalyptic number.

It is an amenable number.

811454429 is a deficient number, since it is larger than the sum of its proper divisors (1175011).

811454429 is a wasteful number, since it uses less digits than its factorization.

811454429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175010.

The product of its digits is 46080, while the sum is 38.

The square root of 811454429 is about 28486.0391946652. The cubic root of 811454429 is about 932.7273501631.

The spelling of 811454429 in words is "eight hundred eleven million, four hundred fifty-four thousand, four hundred twenty-nine".

Divisors: 1 691 1174319 811454429