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532712891 = 4391213469
BaseRepresentation
bin11111110000001…
…000110110111011
31101010101121201002
4133300020312323
52042333303031
6124505515215
716125661544
oct3760106673
91333347632
10532712891
11253780097
1212a4a2b0b
1386499b39
1450a6d4cb
1531b7accb
hex1fc08dbb

532712891 has 4 divisors (see below), whose sum is σ = 533926800. Its totient is φ = 531498984.

The previous prime is 532712819. The next prime is 532712903. The reversal of 532712891 is 198217235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-532712891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (532712801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606296 + ... + 607173.

It is an arithmetic number, because the mean of its divisors is an integer number (133481700).

Almost surely, 2532712891 is an apocalyptic number.

532712891 is a deficient number, since it is larger than the sum of its proper divisors (1213909).

532712891 is a wasteful number, since it uses less digits than its factorization.

532712891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213908.

The product of its digits is 30240, while the sum is 38.

The square root of 532712891 is about 23080.5738880124. The cubic root of 532712891 is about 810.6456727532.

The spelling of 532712891 in words is "five hundred thirty-two million, seven hundred twelve thousand, eight hundred ninety-one".

Divisors: 1 439 1213469 532712891