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133264405 = 531878363
BaseRepresentation
bin1111111000101…
…11010000010101
3100021202112101201
413330113100111
5233103430110
621120152501
73205504651
oct774272025
9307675351
10133264405
116925157a
1238768731
13217bc5a1
14139ada61
15ba75b3a
hex7f17415

133264405 has 8 divisors (see below), whose sum is σ = 159986592. Its totient is φ = 106565328.

The previous prime is 133264379. The next prime is 133264409. The reversal of 133264405 is 504462331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-133264405 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 (133264409) 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, 11754 + ... + 20116.

It is an arithmetic number, because the mean of its divisors is an integer number (19998324).

Almost surely, 2133264405 is an apocalyptic number.

It is an amenable number.

133264405 is a deficient number, since it is larger than the sum of its proper divisors (26722187).

133264405 is an equidigital number, since it uses as much as digits as its factorization.

133264405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11555.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 133264405 is about 11544.0203135649. The cubic root of 133264405 is about 510.7849057013.

The spelling of 133264405 in words is "one hundred thirty-three million, two hundred sixty-four thousand, four hundred five".

Divisors: 1 5 3187 8363 15935 41815 26652881 133264405