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989159121 = 3412211841
BaseRepresentation
bin111010111101010…
…101111011010001
32112221021111020000
4322331111323101
54011211042441
6242053040213
733340466556
oct7275257321
92487244200
10989159121
11468399985
12237326069
13129c12972
1495528a2d
155bc8e2b6
hex3af55ed1

989159121 has 10 divisors (see below), whose sum is σ = 1477632882. Its totient is φ = 659439360.

The previous prime is 989159113. The next prime is 989159177. The reversal of 989159121 is 121951989.

It can be written as a sum of positive squares in only one way, i.e., 514790721 + 474368400 = 22689^2 + 21780^2 .

It is not a de Polignac number, because 989159121 - 23 = 989159113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989159021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6105840 + ... + 6106001.

Almost surely, 2989159121 is an apocalyptic number.

It is an amenable number.

989159121 is a deficient number, since it is larger than the sum of its proper divisors (488473761).

989159121 is a wasteful number, since it uses less digits than its factorization.

989159121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211853 (or 12211844 counting only the distinct ones).

The product of its digits is 58320, while the sum is 45.

The square root of 989159121 is about 31450.9001619985. The cubic root of 989159121 is about 996.3732361521.

The spelling of 989159121 in words is "nine hundred eighty-nine million, one hundred fifty-nine thousand, one hundred twenty-one".

Divisors: 1 3 9 27 81 12211841 36635523 109906569 329719707 989159121