Search a number
-
+
89819013 = 3241124231
BaseRepresentation
bin1010101101010…
…00011110000101
320021000021112010
411112220132011
5140443202023
612525044433
72140310004
oct526503605
9207007463
1089819013
1146778399
12260b6719
13157ba75b
14bd00c3b
157d43093
hex55a8785

89819013 has 8 divisors (see below), whose sum is σ = 120256576. Its totient is φ = 59630400.

The previous prime is 89818969. The next prime is 89819029. The reversal of 89819013 is 31091898.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89819013 - 218 = 89556869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89819033) 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 7 ways as a sum of consecutive naturals, for example, 61393 + ... + 62838.

It is an arithmetic number, because the mean of its divisors is an integer number (15032072).

Almost surely, 289819013 is an apocalyptic number.

It is an amenable number.

89819013 is a deficient number, since it is larger than the sum of its proper divisors (30437563).

89819013 is a wasteful number, since it uses less digits than its factorization.

89819013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124475.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 89819013 is about 9477.2893276506. The cubic root of 89819013 is about 447.8398745478.

The spelling of 89819013 in words is "eighty-nine million, eight hundred nineteen thousand, thirteen".

Divisors: 1 3 241 723 124231 372693 29939671 89819013