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133430141 = 1319540203
BaseRepresentation
bin1111111001111…
…11101101111101
3100022001221202002
413330333231331
5233124231031
621123512045
73210065105
oct774775575
9308057662
10133430141
1169355049
1238828625
1321849b60
1413a14205
15baa9ccb
hex7f3fb7d

133430141 has 8 divisors (see below), whose sum is σ = 151257120. Its totient is φ = 116683632.

The previous prime is 133430111. The next prime is 133430147. The reversal of 133430141 is 141034331.

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

It is not a de Polignac number, because 133430141 - 218 = 133167997 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 (133430147) 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, 269855 + ... + 270348.

It is an arithmetic number, because the mean of its divisors is an integer number (18907140).

Almost surely, 2133430141 is an apocalyptic number.

It is an amenable number.

133430141 is a deficient number, since it is larger than the sum of its proper divisors (17826979).

133430141 is a wasteful number, since it uses less digits than its factorization.

133430141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540235.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133430141 is about 11551.1965181101. The cubic root of 133430141 is about 510.9965660644.

Adding to 133430141 its reverse (141034331), we get a palindrome (274464472).

The spelling of 133430141 in words is "one hundred thirty-three million, four hundred thirty thousand, one hundred forty-one".

Divisors: 1 13 19 247 540203 7022639 10263857 133430141