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133065223 = 137971279
BaseRepresentation
bin1111110111001…
…10101000000111
3100021101102011121
413323212220013
5233031041343
621112014411
73204015154
oct773465007
9307342147
10133065223
1169125965
1238691407
132174ca25
141395b22b
15ba36aed
hex7ee6a07

133065223 has 4 divisors (see below), whose sum is σ = 134036640. Its totient is φ = 132093808.

The previous prime is 133065221. The next prime is 133065241. The reversal of 133065223 is 322560331.

It is a happy number.

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 133065223 - 21 = 133065221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133065221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485503 + ... + 485776.

It is an arithmetic number, because the mean of its divisors is an integer number (33509160).

Almost surely, 2133065223 is an apocalyptic number.

133065223 is a deficient number, since it is larger than the sum of its proper divisors (971417).

133065223 is an equidigital number, since it uses as much as digits as its factorization.

133065223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971416.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 133065223 is about 11535.3900237487. The cubic root of 133065223 is about 510.5302993570.

The spelling of 133065223 in words is "one hundred thirty-three million, sixty-five thousand, two hundred twenty-three".

Divisors: 1 137 971279 133065223