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320135454 = 23217785303
BaseRepresentation
bin10011000101001…
…110000100011110
3211022101120021200
4103011032010132
51123423313304
651433340330
710635051342
oct2305160436
9738346250
10320135454
11154787561
128b2676a6
135142aa82
1430735622
151d189e39
hex1314e11e

320135454 has 12 divisors (see below), whose sum is σ = 693626856. Its totient is φ = 106711812.

The previous prime is 320135429. The next prime is 320135467. The reversal of 320135454 is 454531023.

320135454 is a `hidden beast` number, since 3 + 201 + 3 + 5 + 454 = 666.

320135454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3201354542 = 204973417815572232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8892634 + ... + 8892669.

It is an arithmetic number, because the mean of its divisors is an integer number (57802238).

Almost surely, 2320135454 is an apocalyptic number.

320135454 is an abundant number, since it is smaller than the sum of its proper divisors (373491402).

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

320135454 is a wasteful number, since it uses less digits than its factorization.

320135454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17785311 (or 17785308 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 320135454 is about 17892.3294738276. The cubic root of 320135454 is about 684.0868746740.

Adding to 320135454 its reverse (454531023), we get a palindrome (774666477).

The spelling of 320135454 in words is "three hundred twenty million, one hundred thirty-five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 17785303 35570606 53355909 106711818 160067727 320135454