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89125613 = 2928110937
BaseRepresentation
bin1010100111111…
…11001011101101
320012201001100122
411103333023231
5140304004423
612502134325
72131361303
oct523771355
9205631318
1089125613
1146344435
1225a213a5
1315606c65
14bba0273
157c578c8
hex54ff2ed

89125613 has 8 divisors (see below), whose sum is σ = 92535480. Its totient is φ = 85738240.

The previous prime is 89125607. The next prime is 89125633. The reversal of 89125613 is 31652198.

It can be written as a sum of positive squares in 4 ways, for example, as 44262409 + 44863204 = 6653^2 + 6698^2 .

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 89125613 - 218 = 88863469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89125633) 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, 2681 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (11566935).

Almost surely, 289125613 is an apocalyptic number.

It is an amenable number.

89125613 is a deficient number, since it is larger than the sum of its proper divisors (3409867).

89125613 is a wasteful number, since it uses less digits than its factorization.

89125613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11247.

The product of its digits is 12960, while the sum is 35.

The square root of 89125613 is about 9440.6362603375. The cubic root of 89125613 is about 446.6844595150.

The spelling of 89125613 in words is "eighty-nine million, one hundred twenty-five thousand, six hundred thirteen".

Divisors: 1 29 281 8149 10937 317173 3073297 89125613