Search a number
-
+
989258121 = 322910735423
BaseRepresentation
bin111010111101101…
…110000110001001
32112221110112000200
4322331232012021
54011222224441
6242055122413
733341361315
oct7275560611
92487415020
10989258121
114684572a5
12237373409
13129c48a47
1495552b45
155bcad7b6
hex3af6e189

989258121 has 24 divisors (see below), whose sum is σ = 1492058880. Its totient is φ = 630794976.

The previous prime is 989258111. The next prime is 989258141. The reversal of 989258121 is 121852989.

It is not a de Polignac number, because 989258121 - 26 = 989258057 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (989258111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10216 + ... + 45638.

It is an arithmetic number, because the mean of its divisors is an integer number (62169120).

Almost surely, 2989258121 is an apocalyptic number.

It is an amenable number.

989258121 is a deficient number, since it is larger than the sum of its proper divisors (502800759).

989258121 is a wasteful number, since it uses less digits than its factorization.

989258121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35565 (or 35562 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 989258121 is about 31452.4740044404. The cubic root of 989258121 is about 996.4064757181.

The spelling of 989258121 in words is "nine hundred eighty-nine million, two hundred fifty-eight thousand, one hundred twenty-one".

Divisors: 1 3 9 29 87 107 261 321 963 3103 9309 27927 35423 106269 318807 1027267 3081801 3790261 9245403 11370783 34112349 109917569 329752707 989258121