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89270121 = 329756707
BaseRepresentation
bin1010101001000…
…10011101101001
320012222101120210
411110202131221
5140323120441
612505211333
72132532513
oct524423551
9205871523
1089270121
1146432a66
1225a90b49
1315657975
14bbdabb3
157c85616
hex5522769

89270121 has 4 divisors (see below), whose sum is σ = 119026832. Its totient is φ = 59513412.

The previous prime is 89270101. The next prime is 89270123. The reversal of 89270121 is 12107298.

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.

It is not a de Polignac number, because 89270121 - 25 = 89270089 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89270123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14878351 + ... + 14878356.

It is an arithmetic number, because the mean of its divisors is an integer number (29756708).

Almost surely, 289270121 is an apocalyptic number.

It is an amenable number.

89270121 is a deficient number, since it is larger than the sum of its proper divisors (29756711).

89270121 is a wasteful number, since it uses less digits than its factorization.

89270121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29756710.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 89270121 is about 9448.2866700794. The cubic root of 89270121 is about 446.9257467661.

The spelling of 89270121 in words is "eighty-nine million, two hundred seventy thousand, one hundred twenty-one".

Divisors: 1 3 29756707 89270121