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431053481 = 3130745293
BaseRepresentation
bin11001101100010…
…101101010101001
31010001002210012202
4121230111222221
51340322202411
6110434545545
713452615455
oct3154255251
91101083182
10431053481
11201355951
121004382b5
136b3c4c41
1441369665
1527c9983b
hex19b15aa9

431053481 has 8 divisors (see below), whose sum is σ = 446417664. Its totient is φ = 415780560.

The previous prime is 431053453. The next prime is 431053487. The reversal of 431053481 is 184350134.

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 431053481 - 26 = 431053417 is a prime.

It is a super-2 number, since 2×4310534812 = 371614206964434722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (431053487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13130 + ... + 32163.

It is an arithmetic number, because the mean of its divisors is an integer number (55802208).

Almost surely, 2431053481 is an apocalyptic number.

It is an amenable number.

431053481 is a deficient number, since it is larger than the sum of its proper divisors (15364183).

431053481 is a wasteful number, since it uses less digits than its factorization.

431053481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45631.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 431053481 is about 20761.8274966343. The cubic root of 431053481 is about 755.4001247371.

The spelling of 431053481 in words is "four hundred thirty-one million, fifty-three thousand, four hundred eighty-one".

Divisors: 1 31 307 9517 45293 1404083 13904951 431053481