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1404061431 = 3468020477
BaseRepresentation
bin101001110110000…
…0100011011110111
310121211222201012020
41103230010123313
510333414431211
6351153524223
746536216363
oct12354043367
93554881166
101404061431
11660613153
12332273673
13194b712a6
14d468c2a3
15833e8306
hex53b046f7

1404061431 has 4 divisors (see below), whose sum is σ = 1872081912. Its totient is φ = 936040952.

The previous prime is 1404061403. The next prime is 1404061453. The reversal of 1404061431 is 1341604041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1404061431 - 26 = 1404061367 is a prime.

It is a super-2 number, since 2×14040614312 = 3942777004043535522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404061471) 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, 234010236 + ... + 234010241.

It is an arithmetic number, because the mean of its divisors is an integer number (468020478).

Almost surely, 21404061431 is an apocalyptic number.

1404061431 is a deficient number, since it is larger than the sum of its proper divisors (468020481).

1404061431 is an equidigital number, since it uses as much as digits as its factorization.

1404061431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468020480.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1404061431 is about 37470.8077174752. The cubic root of 1404061431 is about 1119.7696781384.

Adding to 1404061431 its reverse (1341604041), we get a palindrome (2745665472).

The spelling of 1404061431 in words is "one billion, four hundred four million, sixty-one thousand, four hundred thirty-one".

Divisors: 1 3 468020477 1404061431