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89070545 = 5107166487
BaseRepresentation
bin1010100111100…
…01101111010001
320012121020211002
411103301233101
5140300224140
612501031345
72131041614
oct523615721
9205536732
1089070545
1146307023
12259b5555
13155b7b85
14bb8817b
157c46415
hex54f1bd1

89070545 has 8 divisors (see below), whose sum is σ = 107884224. Its totient is φ = 70590064.

The previous prime is 89070539. The next prime is 89070547. The reversal of 89070545 is 54507098.

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 89070545 - 26 = 89070481 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89070499 and 89070508.

It is not an unprimeable number, because it can be changed into a prime (89070547) 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, 82709 + ... + 83778.

It is an arithmetic number, because the mean of its divisors is an integer number (13485528).

Almost surely, 289070545 is an apocalyptic number.

It is an amenable number.

89070545 is a deficient number, since it is larger than the sum of its proper divisors (18813679).

89070545 is a wasteful number, since it uses less digits than its factorization.

89070545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166599.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 89070545 is about 9437.7192689760. The cubic root of 89070545 is about 446.5924429896.

The spelling of 89070545 in words is "eighty-nine million, seventy thousand, five hundred forty-five".

Divisors: 1 5 107 535 166487 832435 17814109 89070545