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93285989 = 531760113
BaseRepresentation
bin1011000111101…
…10111001100101
320111112102022122
411203312321211
5142340122424
613131235325
72211626546
oct543667145
9214472278
1093285989
1148726165
12272a8b45
1316432814
14c5644cd
1582ca45e
hex58f6e65

93285989 has 4 divisors (see below), whose sum is σ = 95046156. Its totient is φ = 91525824.

The previous prime is 93285979. The next prime is 93286003. The reversal of 93285989 is 98958239.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98958239 = 372674547.

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 26863489 = 8150^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 93285989 - 28 = 93285733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1760113 = 93285989 / (9 + 3 + 2 + 8 + 5 + 9 + 8 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 93285989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93285949) 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, 880004 + ... + 880109.

It is an arithmetic number, because the mean of its divisors is an integer number (23761539).

Almost surely, 293285989 is an apocalyptic number.

It is an amenable number.

93285989 is a deficient number, since it is larger than the sum of its proper divisors (1760167).

93285989 is a wasteful number, since it uses less digits than its factorization.

93285989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760166.

The product of its digits is 1399680, while the sum is 53.

The square root of 93285989 is about 9658.4672179389. The cubic root of 93285989 is about 453.5294292328.

The spelling of 93285989 in words is "ninety-three million, two hundred eighty-five thousand, nine hundred eighty-nine".

Divisors: 1 53 1760113 93285989