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89648461 = 712806923
BaseRepresentation
bin1010101011111…
…10110101001101
320020200121120101
411111332311031
5140422222321
612521251101
72135666530
oct525766515
9206617511
1089648461
1146671241
1226033a91
131575ac36
14bc98a17
157d0c791
hex557ed4d

89648461 has 4 divisors (see below), whose sum is σ = 102455392. Its totient is φ = 76841532.

The previous prime is 89648459. The next prime is 89648477. The reversal of 89648461 is 16484698.

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 a cyclic number.

It is not a de Polignac number, because 89648461 - 21 = 89648459 is a prime.

It is a super-3 number, since 3×896484613 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89648761) by changing a digit.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6403455 + ... + 6403468.

It is an arithmetic number, because the mean of its divisors is an integer number (25613848).

Almost surely, 289648461 is an apocalyptic number.

It is an amenable number.

89648461 is a deficient number, since it is larger than the sum of its proper divisors (12806931).

89648461 is a wasteful number, since it uses less digits than its factorization.

89648461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12806930.

The product of its digits is 331776, while the sum is 46.

The square root of 89648461 is about 9468.2871206993. The cubic root of 89648461 is about 447.5562360795.

It can be divided in two parts, 89648 and 461, that added together give a palindrome (90109).

The spelling of 89648461 in words is "eighty-nine million, six hundred forty-eight thousand, four hundred sixty-one".

Divisors: 1 7 12806923 89648461