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89972211 = 3717435861
BaseRepresentation
bin1010101110011…
…01110111110011
320021022001200010
411113031313303
5141013102321
612532230003
72141515440
oct527156763
9207261603
1089972211
11468724aa
122616b303
13158423c4
14bd409c7
157d73676
hex55cddf3

89972211 has 32 divisors (see below), whose sum is σ = 148566528. Its totient is φ = 47255040.

The previous prime is 89972191. The next prime is 89972219. The reversal of 89972211 is 11227998.

It is not a de Polignac number, because 89972211 - 222 = 85777907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89972211.

It is not an unprimeable number, because it can be changed into a prime (89972219) 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, 12421 + ... + 18281.

It is an arithmetic number, because the mean of its divisors is an integer number (4642704).

Almost surely, 289972211 is an apocalyptic number.

89972211 is a deficient number, since it is larger than the sum of its proper divisors (58594317).

89972211 is a wasteful number, since it uses less digits than its factorization.

89972211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931.

The product of its digits is 18144, while the sum is 39.

The square root of 89972211 is about 9485.3682585338. The cubic root of 89972211 is about 448.0943462942.

The spelling of 89972211 in words is "eighty-nine million, nine hundred seventy-two thousand, two hundred eleven".

Divisors: 1 3 7 17 21 43 51 119 129 301 357 731 903 2193 5117 5861 15351 17583 41027 99637 123081 252023 298911 697459 756069 1764161 2092377 4284391 5292483 12853173 29990737 89972211