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89840149 = 719366499
BaseRepresentation
bin1010101101011…
…01101000010101
320021001100111221
411112231220111
5140444341044
612525330341
72140425430
oct526555025
9207040457
1089840149
1146792263
12261069b1
13157c7269
14bd08817
157d49484
hex55ada15

89840149 has 8 divisors (see below), whose sum is σ = 103208000. Its totient is φ = 76605696.

The previous prime is 89840131. The next prime is 89840159. The reversal of 89840149 is 94104898.

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 89840149 - 25 = 89840117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89840119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31899 + ... + 34600.

It is an arithmetic number, because the mean of its divisors is an integer number (12901000).

Almost surely, 289840149 is an apocalyptic number.

It is an amenable number.

89840149 is a deficient number, since it is larger than the sum of its proper divisors (13367851).

89840149 is a wasteful number, since it uses less digits than its factorization.

89840149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66699.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 89840149 is about 9478.4043488342. The cubic root of 89840149 is about 447.8750000032.

The spelling of 89840149 in words is "eighty-nine million, eight hundred forty thousand, one hundred forty-nine".

Divisors: 1 7 193 1351 66499 465493 12834307 89840149