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89686253 = 129769149
BaseRepresentation
bin1010101100010…
…00000011101101
320020202112102002
411112020003231
5140424430003
612522142045
72136214646
oct526100355
9206675362
1089686253
1146697678
1226051925
13157721b7
14bca86cd
157d18a88
hex55880ed

89686253 has 4 divisors (see below), whose sum is σ = 89756700. Its totient is φ = 89615808.

The previous prime is 89686249. The next prime is 89686307. The reversal of 89686253 is 35268698.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69588964 + 20097289 = 8342^2 + 4483^2 .

It is a cyclic number.

It is not a de Polignac number, because 89686253 - 22 = 89686249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 89686198 and 89686207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89682253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33278 + ... + 35871.

It is an arithmetic number, because the mean of its divisors is an integer number (22439175).

Almost surely, 289686253 is an apocalyptic number.

It is an amenable number.

89686253 is a deficient number, since it is larger than the sum of its proper divisors (70447).

89686253 is a wasteful number, since it uses less digits than its factorization.

89686253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70446.

The product of its digits is 622080, while the sum is 47.

The square root of 89686253 is about 9470.2826251385. The cubic root of 89686253 is about 447.6191175050.

The spelling of 89686253 in words is "eighty-nine million, six hundred eighty-six thousand, two hundred fifty-three".

Divisors: 1 1297 69149 89686253