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133300131 = 347945391
BaseRepresentation
bin1111111000111…
…11111110100011
3100021211100101220
413330133332203
5233111101011
621121030123
73206014056
oct774377643
9307740356
10133300131
11692763a8
1238785343
1321802923
14139bca9d
15ba81506
hex7f1ffa3

133300131 has 8 divisors (see below), whose sum is σ = 181515264. Its totient is φ = 86975880.

The previous prime is 133300121. The next prime is 133300147. The reversal of 133300131 is 131003331.

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

It is not a de Polignac number, because 133300131 - 27 = 133300003 is a prime.

It is a super-2 number, since 2×1333001312 = 35537849849234322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133300131.

It is not an unprimeable number, because it can be changed into a prime (133300121) 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, 472555 + ... + 472836.

It is an arithmetic number, because the mean of its divisors is an integer number (22689408).

Almost surely, 2133300131 is an apocalyptic number.

133300131 is a deficient number, since it is larger than the sum of its proper divisors (48215133).

133300131 is an equidigital number, since it uses as much as digits as its factorization.

133300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945441.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 133300131 is about 11545.5675910715. The cubic root of 133300131 is about 510.8305459733.

Adding to 133300131 its reverse (131003331), we get a palindrome (264303462).

The spelling of 133300131 in words is "one hundred thirty-three million, three hundred thousand, one hundred thirty-one".

Divisors: 1 3 47 141 945391 2836173 44433377 133300131