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133012907 = 277631761
BaseRepresentation
bin1111110110110…
…01110110101011
3100021021202101222
413323121312223
5233022403112
621110532255
73203406506
oct773316653
9307252358
10133012907
116909a625
123866708b
1321731c81
141394613d
15ba26372
hex7ed9dab

133012907 has 8 divisors (see below), whose sum is σ = 133880352. Its totient is φ = 132148800.

The previous prime is 133012823. The next prime is 133012927. The reversal of 133012907 is 709210331.

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

It is a cyclic number.

It is not a de Polignac number, because 133012907 - 220 = 131964331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133012927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174407 + ... + 175167.

It is an arithmetic number, because the mean of its divisors is an integer number (16735044).

Almost surely, 2133012907 is an apocalyptic number.

133012907 is a deficient number, since it is larger than the sum of its proper divisors (867445).

133012907 is an equidigital number, since it uses as much as digits as its factorization.

133012907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 133012907 is about 11533.1221705139. The cubic root of 133012907 is about 510.4633837908.

The spelling of 133012907 in words is "one hundred thirty-three million, twelve thousand, nine hundred seven".

Divisors: 1 277 631 761 174787 210797 480191 133012907