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89609469 = 329869823
BaseRepresentation
bin1010101011101…
…01010011111101
320020121122002020
411111311103331
5140420000334
612520350353
72135445045
oct525652375
9206548066
1089609469
1146644a14
12260153b9
1315746271
14bc88725
157d00e49
hex55754fd

89609469 has 4 divisors (see below), whose sum is σ = 119479296. Its totient is φ = 59739644.

The previous prime is 89609467. The next prime is 89609503. The reversal of 89609469 is 96490698.

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 89609469 - 21 = 89609467 is a prime.

It is a super-2 number, since 2×896094692 = 16059713868923922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89609467) 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, 14934909 + ... + 14934914.

It is an arithmetic number, because the mean of its divisors is an integer number (29869824).

Almost surely, 289609469 is an apocalyptic number.

It is an amenable number.

89609469 is a deficient number, since it is larger than the sum of its proper divisors (29869827).

89609469 is a wasteful number, since it uses less digits than its factorization.

89609469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29869826.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 89609469 is about 9466.2278125978. The cubic root of 89609469 is about 447.4913394701.

The spelling of 89609469 in words is "eighty-nine million, six hundred nine thousand, four hundred sixty-nine".

Divisors: 1 3 29869823 89609469