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920089 = 7112959
BaseRepresentation
bin11100000101000011001
31201202010101
43200220121
5213420324
631415401
710551322
oct3405031
91652111
10920089
11579305
12384561
13262a41
1419d449
15132944
hexe0a19

920089 has 4 divisors (see below), whose sum is σ = 933120. Its totient is φ = 907060.

The previous prime is 920053. The next prime is 920107. The reversal of 920089 is 980029.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 980029 = 2833463.

It is a cyclic number.

It is not a de Polignac number, because 920089 - 211 = 918041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920039) 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, 6409 + ... + 6550.

It is an arithmetic number, because the mean of its divisors is an integer number (233280).

2920089 is an apocalyptic number.

It is an amenable number.

920089 is a deficient number, since it is larger than the sum of its proper divisors (13031).

920089 is a wasteful number, since it uses less digits than its factorization.

920089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13030.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 920089 is about 959.2126979977. The cubic root of 920089 is about 97.2620187673.

The spelling of 920089 in words is "nine hundred twenty thousand, eighty-nine".

Divisors: 1 71 12959 920089