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89946087 = 3711419497
BaseRepresentation
bin1010101110001…
…11011111100111
320021020201211120
411113013133213
5141011233322
612531505023
72141346330
oct527073747
9207221746
1089946087
1146854910
1226158173
131583354a
14bd35287
157d6aa5c
hex55c77e7

89946087 has 32 divisors (see below), whose sum is σ = 153183744. Its totient is φ = 45580800.

The previous prime is 89946061. The next prime is 89946107. The reversal of 89946087 is 78064998.

It is a happy number.

It is not a de Polignac number, because 89946087 - 220 = 88897511 is a prime.

It is a super-2 number, since 2×899460872 = 16180597133223138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89946007) 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, 4723 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (4786992).

Almost surely, 289946087 is an apocalyptic number.

89946087 is a deficient number, since it is larger than the sum of its proper divisors (63237657).

89946087 is a wasteful number, since it uses less digits than its factorization.

89946087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 89946087 is about 9483.9910902531. The cubic root of 89946087 is about 448.0509730878.

The spelling of 89946087 in words is "eighty-nine million, nine hundred forty-six thousand, eighty-seven".

Divisors: 1 3 7 11 21 33 41 77 123 231 287 451 861 1353 3157 9471 9497 28491 66479 104467 199437 313401 389377 731269 1168131 2193807 2725639 4283147 8176917 12849441 29982029 89946087