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133231054 = 2116055957
BaseRepresentation
bin1111111000011…
…11000111001110
3100021200211122111
413330033013032
5233101343204
621115334234
73205305505
oct774170716
9307624574
10133231054
1169229510
123875137a
13217aa358
14139a183c
15ba6ad04
hex7f0f1ce

133231054 has 8 divisors (see below), whose sum is σ = 218014488. Its totient is φ = 60559560.

The previous prime is 133231013. The next prime is 133231073. The reversal of 133231054 is 450132331.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 6055957 = 133231054 / (1 + 3 + 3 + 2 + 3 + 1 + 0 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

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, 3027957 + ... + 3028000.

It is an arithmetic number, because the mean of its divisors is an integer number (27251811).

Almost surely, 2133231054 is an apocalyptic number.

133231054 is a deficient number, since it is larger than the sum of its proper divisors (84783434).

133231054 is a wasteful number, since it uses less digits than its factorization.

133231054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055970.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133231054 is about 11542.5757090868. The cubic root of 133231054 is about 510.7422921500.

Adding to 133231054 its reverse (450132331), we get a palindrome (583363385).

The spelling of 133231054 in words is "one hundred thirty-three million, two hundred thirty-one thousand, fifty-four".

Divisors: 1 2 11 22 6055957 12111914 66615527 133231054