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213496789 = 1179245681
BaseRepresentation
bin11001011100110…
…11001111010101
3112212201202112111
430232123033111
5414123344124
633103551021
75201456422
oct1456331725
9485652474
10213496789
11aa571330
125b5bb471
133530167c
14204d6d49
1513b23494
hexcb9b3d5

213496789 has 8 divisors (see below), whose sum is σ = 235854720. Its totient is φ = 191630400.

The previous prime is 213496769. The next prime is 213496807. The reversal of 213496789 is 987694312.

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 213496789 - 25 = 213496757 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 (213496739) 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 7 ways as a sum of consecutive naturals, for example, 121972 + ... + 123709.

It is an arithmetic number, because the mean of its divisors is an integer number (29481840).

Almost surely, 2213496789 is an apocalyptic number.

It is an amenable number.

213496789 is a deficient number, since it is larger than the sum of its proper divisors (22357931).

213496789 is a wasteful number, since it uses less digits than its factorization.

213496789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245771.

The product of its digits is 653184, while the sum is 49.

The square root of 213496789 is about 14611.5293176313. The cubic root of 213496789 is about 597.6732003737.

The spelling of 213496789 in words is "two hundred thirteen million, four hundred ninety-six thousand, seven hundred eighty-nine".

Divisors: 1 11 79 869 245681 2702491 19408799 213496789