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133054521 = 3148129947
BaseRepresentation
bin1111110111001…
…00000000111001
3100021100212111020
413323210000321
5233030221041
621111453053
73203642025
oct773440071
9307325436
10133054521
1169118916
1238687189
1321747bb2
1413957385
15ba33866
hex7ee4039

133054521 has 8 divisors (see below), whose sum is σ = 177531744. Its totient is φ = 88640160.

The previous prime is 133054507. The next prime is 133054531. The reversal of 133054521 is 125450331.

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

It is not a de Polignac number, because 133054521 - 211 = 133052473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133054491 and 133054500.

It is not an unprimeable number, because it can be changed into a prime (133054531) 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, 10531 + ... + 19416.

It is an arithmetic number, because the mean of its divisors is an integer number (22191468).

Almost surely, 2133054521 is an apocalyptic number.

It is an amenable number.

133054521 is a deficient number, since it is larger than the sum of its proper divisors (44477223).

133054521 is a wasteful number, since it uses less digits than its factorization.

133054521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31431.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 133054521 is about 11534.9261376049. The cubic root of 133054521 is about 510.5166122301.

The spelling of 133054521 in words is "one hundred thirty-three million, fifty-four thousand, five hundred twenty-one".

Divisors: 1 3 1481 4443 29947 89841 44351507 133054521