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93387985 = 5149125353
BaseRepresentation
bin1011001000011…
…11110011010001
320111201121020021
411210033303101
5142401403420
613133343441
72212533115
oct544176321
9214647207
1093387985
1148795859
1227337b81
131646a082
14c58d745
1582ea7aa
hex590fcd1

93387985 has 8 divisors (see below), whose sum is σ = 112818600. Its totient is φ = 74208384.

The previous prime is 93387971. The next prime is 93387991. The reversal of 93387985 is 58978339.

It can be written as a sum of positive squares in 4 ways, for example, as 1860496 + 91527489 = 1364^2 + 9567^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 93387985 - 27 = 93387857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61932 + ... + 63421.

It is an arithmetic number, because the mean of its divisors is an integer number (14102325).

Almost surely, 293387985 is an apocalyptic number.

It is an amenable number.

93387985 is a deficient number, since it is larger than the sum of its proper divisors (19430615).

93387985 is a wasteful number, since it uses less digits than its factorization.

93387985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125507.

The product of its digits is 1632960, while the sum is 52.

The square root of 93387985 is about 9663.7459093252. The cubic root of 93387985 is about 453.6946606868.

The spelling of 93387985 in words is "ninety-three million, three hundred eighty-seven thousand, nine hundred eighty-five".

Divisors: 1 5 149 745 125353 626765 18677597 93387985