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89952213 = 31319233521
BaseRepresentation
bin1010101110010…
…00111111010101
320021021001020110
411113020333111
5141011432323
612531553233
72141403231
oct527107725
9207231213
1089952213
114685947a
122615b819
1315836280
14bd375c1
157d6c793
hex55c8fd5

89952213 has 32 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 52116480.

The previous prime is 89952209. The next prime is 89952221. The reversal of 89952213 is 31225998.

It is not a de Polignac number, because 89952213 - 22 = 89952209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89952223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172393 + ... + 172913.

It is an arithmetic number, because the mean of its divisors is an integer number (4275180).

Almost surely, 289952213 is an apocalyptic number.

It is an amenable number.

89952213 is a deficient number, since it is larger than the sum of its proper divisors (46853547).

89952213 is a wasteful number, since it uses less digits than its factorization.

89952213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 38880, while the sum is 39.

The square root of 89952213 is about 9484.3140500513. The cubic root of 89952213 is about 448.0611447289.

The spelling of 89952213 in words is "eighty-nine million, nine hundred fifty-two thousand, two hundred thirteen".

Divisors: 1 3 13 19 39 57 233 247 521 699 741 1563 3029 4427 6773 9087 9899 13281 20319 29697 57551 121393 128687 172653 364179 386061 1578109 2306467 4734327 6919401 29984071 89952213