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533472521 = 3117208791
BaseRepresentation
bin11111110011000…
…010010100001001
31101011211012201112
4133303002110021
52043032110041
6124534100105
716135304321
oct3763022411
91334735645
10533472521
1125414988a
1212a7aa635
13866a481a
1450bca281
1531c7adeb
hex1fcc2509

533472521 has 4 divisors (see below), whose sum is σ = 550681344. Its totient is φ = 516263700.

The previous prime is 533472509. The next prime is 533472523. The reversal of 533472521 is 125274335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-533472521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533472523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8604365 + ... + 8604426.

It is an arithmetic number, because the mean of its divisors is an integer number (137670336).

Almost surely, 2533472521 is an apocalyptic number.

It is an amenable number.

533472521 is a deficient number, since it is larger than the sum of its proper divisors (17208823).

533472521 is a wasteful number, since it uses less digits than its factorization.

533472521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17208822.

The product of its digits is 25200, while the sum is 32.

The square root of 533472521 is about 23097.0240723778. The cubic root of 533472521 is about 811.0308072323.

The spelling of 533472521 in words is "five hundred thirty-three million, four hundred seventy-two thousand, five hundred twenty-one".

Divisors: 1 31 17208791 533472521