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89212669 = 7134432213
BaseRepresentation
bin1010101000101…
…00011011111101
320012212110202221
411110110123331
5140314301134
612504045341
72132203150
oct524243375
9205773687
1089212669
11463a3887
1225a63851
1315637780
14bbc3c97
157c735b4
hex55146fd

89212669 has 16 divisors (see below), whose sum is σ = 110097792. Its totient is φ = 70394688.

The previous prime is 89212663. The next prime is 89212681. The reversal of 89212669 is 96621298.

It is not a de Polignac number, because 89212669 - 213 = 89204477 is a prime.

It is a super-2 number, since 2×892126692 = 15917800620207122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89212663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39207 + ... + 41419.

It is an arithmetic number, because the mean of its divisors is an integer number (6881112).

Almost surely, 289212669 is an apocalyptic number.

It is an amenable number.

89212669 is a deficient number, since it is larger than the sum of its proper divisors (20885123).

89212669 is a wasteful number, since it uses less digits than its factorization.

89212669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its digits is 93312, while the sum is 43.

The square root of 89212669 is about 9445.2458411626. The cubic root of 89212669 is about 446.8298494752.

The spelling of 89212669 in words is "eighty-nine million, two hundred twelve thousand, six hundred sixty-nine".

Divisors: 1 7 13 91 443 2213 3101 5759 15491 28769 40313 201383 980359 6862513 12744667 89212669