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133123141 = 1743182111
BaseRepresentation
bin1111110111101…
…00110001000101
3100021111100121201
413323310301011
5233034420031
621113142501
73204346054
oct773646105
9307440551
10133123141
1169165428
12386baa31
13217701b8
141397439b
15ba48d61
hex7ef4c45

133123141 has 8 divisors (see below), whose sum is σ = 144232704. Its totient is φ = 122377920.

The previous prime is 133123099. The next prime is 133123157. The reversal of 133123141 is 141321331.

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 133123141 - 27 = 133123013 is a prime.

It is a super-3 number, since 3×1331231413 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133123181) 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, 90325 + ... + 91786.

It is an arithmetic number, because the mean of its divisors is an integer number (18029088).

Almost surely, 2133123141 is an apocalyptic number.

It is an amenable number.

133123141 is a deficient number, since it is larger than the sum of its proper divisors (11109563).

133123141 is a wasteful number, since it uses less digits than its factorization.

133123141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182171.

The product of its digits is 216, while the sum is 19.

The square root of 133123141 is about 11537.9001989097. The cubic root of 133123141 is about 510.6043597919.

Adding to 133123141 its reverse (141321331), we get a palindrome (274444472).

The spelling of 133123141 in words is "one hundred thirty-three million, one hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 17 43 731 182111 3095887 7830773 133123141