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133144353 = 3222765171
BaseRepresentation
bin1111110111110…
…01111100100001
3100021112102201100
413323321330201
5233041104403
621113425013
73204464646
oct773717441
9307472640
10133144353
116917a361
123870b169
1321779a54
141397bdcd
15ba502a3
hex7ef9f21

133144353 has 12 divisors (see below), whose sum is σ = 193169808. Its totient is φ = 88370520.

The previous prime is 133144351. The next prime is 133144379. The reversal of 133144353 is 353441331.

It is not a de Polignac number, because 133144353 - 21 = 133144351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133144351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30543 + ... + 34628.

It is an arithmetic number, because the mean of its divisors is an integer number (16097484).

Almost surely, 2133144353 is an apocalyptic number.

It is an amenable number.

133144353 is a deficient number, since it is larger than the sum of its proper divisors (60025455).

133144353 is a wasteful number, since it uses less digits than its factorization.

133144353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65404 (or 65401 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 133144353 is about 11538.8193936815. The cubic root of 133144353 is about 510.6314784540.

Adding to 133144353 its reverse (353441331), we get a palindrome (486585684).

The spelling of 133144353 in words is "one hundred thirty-three million, one hundred forty-four thousand, three hundred fifty-three".

Divisors: 1 3 9 227 681 2043 65171 195513 586539 14793817 44381451 133144353