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89231277427 = 821108686087
BaseRepresentation
bin101001100011010011…
…0010011110101110011
322112022200101112222221
41103012212103311303
52430221201334202
6104554155541511
76306143225605
oct1230646236563
9275280345887
1089231277427
113492a803486
121536345a897
1385507a0956
144466b95175
1524c3b32037
hex14c6993d73

89231277427 has 4 divisors (see below), whose sum is σ = 89339964336. Its totient is φ = 89122590520.

The previous prime is 89231277419. The next prime is 89231277451. The reversal of 89231277427 is 72477213298.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89231277427 - 23 = 89231277419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89231277497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54342223 + ... + 54343864.

It is an arithmetic number, because the mean of its divisors is an integer number (22334991084).

Almost surely, 289231277427 is an apocalyptic number.

89231277427 is a deficient number, since it is larger than the sum of its proper divisors (108686909).

89231277427 is a wasteful number, since it uses less digits than its factorization.

89231277427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108686908.

The product of its digits is 2370816, while the sum is 52.

The spelling of 89231277427 in words is "eighty-nine billion, two hundred thirty-one million, two hundred seventy-seven thousand, four hundred twenty-seven".

Divisors: 1 821 108686087 89231277427