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89800145 = 528363463
BaseRepresentation
bin1010101101000…
…11110111010001
320020222022122022
411112203313101
5140442101040
612524421225
72140201001
oct526436721
9206868568
1089800145
11467651a6
12260a7815
13157b1ca6
14bcd8001
157d3c6b5
hex55a3dd1

89800145 has 8 divisors (see below), whose sum is σ = 108142656. Its totient is φ = 71585136.

The previous prime is 89800133. The next prime is 89800163. The reversal of 89800145 is 54100898.

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 89800145 - 220 = 88751569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30317 + ... + 33146.

It is an arithmetic number, because the mean of its divisors is an integer number (13517832).

Almost surely, 289800145 is an apocalyptic number.

It is an amenable number.

89800145 is a deficient number, since it is larger than the sum of its proper divisors (18342511).

89800145 is a wasteful number, since it uses less digits than its factorization.

89800145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63751.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 89800145 is about 9476.2938430591. The cubic root of 89800145 is about 447.8085135764.

The spelling of 89800145 in words is "eighty-nine million, eight hundred thousand, one hundred forty-five".

Divisors: 1 5 283 1415 63463 317315 17960029 89800145