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800013492 = 223222222597
BaseRepresentation
bin101111101011110…
…011110010110100
32001202100220012100
4233223303302310
53114300412432
6211215022100
725553000565
oct5753636264
92052326170
10800013492
1138064aa83
121a3b0a930
13c9989085
147837016c
154a37b07c
hex2faf3cb4

800013492 has 18 divisors (see below), whose sum is σ = 2022256418. Its totient is φ = 266671152.

The previous prime is 800013451. The next prime is 800013499. The reversal of 800013492 is 294310008.

It can be written as a sum of positive squares in only one way, i.e., 601034256 + 198979236 = 24516^2 + 14106^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800013499) 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 5 ways as a sum of consecutive naturals, for example, 11111263 + ... + 11111334.

Almost surely, 2800013492 is an apocalyptic number.

It is an amenable number.

800013492 is an abundant number, since it is smaller than the sum of its proper divisors (1222242926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800013492 is a wasteful number, since it uses less digits than its factorization.

800013492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22222607 (or 22222602 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 800013492 is about 28284.5097535736. The cubic root of 800013492 is about 928.3229853863.

The spelling of 800013492 in words is "eight hundred million, thirteen thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 22222597 44445194 66667791 88890388 133335582 200003373 266671164 400006746 800013492