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404233081 = 7157367819
BaseRepresentation
bin11000000110000…
…001101101111001
31001011122011112121
4120012001231321
51311440424311
6104040041241
713005632050
oct3006015571
91034564477
10404233081
111981a732a
12b3463221
1365994295
143b987397
152574cb71
hex18181b79

404233081 has 8 divisors (see below), whose sum is σ = 464924480. Its totient is φ = 344277648.

The previous prime is 404233069. The next prime is 404233091. The reversal of 404233081 is 180332404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404233081 - 219 = 403708793 is a prime.

It is a super-2 number, since 2×4042330812 = 326808767549505122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404233051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182811 + ... + 185008.

It is an arithmetic number, because the mean of its divisors is an integer number (58115560).

Almost surely, 2404233081 is an apocalyptic number.

It is an amenable number.

404233081 is a deficient number, since it is larger than the sum of its proper divisors (60691399).

404233081 is a wasteful number, since it uses less digits than its factorization.

404233081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367983.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 404233081 is about 20105.5485127862. The cubic root of 404233081 is about 739.3963185918.

Adding to 404233081 its reverse (180332404), we get a palindrome (584565485).

The spelling of 404233081 in words is "four hundred four million, two hundred thirty-three thousand, eighty-one".

Divisors: 1 7 157 1099 367819 2574733 57747583 404233081