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214485993 = 3231768767
BaseRepresentation
bin11001100100011…
…00101111101001
3112221121000110200
430302030233221
5414402022433
633141102413
75213046411
oct1462145751
9487530420
10214485993
11100087557
125b9b7a09
13355899b7
14206b3641
1513c6b613
hexcc8cbe9

214485993 has 12 divisors (see below), whose sum is σ = 319807488. Its totient is φ = 138377880.

The previous prime is 214485989. The next prime is 214486007. The reversal of 214485993 is 399584412.

214485993 is a `hidden beast` number, since 2 + 14 + 48 + 599 + 3 = 666.

It is not a de Polignac number, because 214485993 - 22 = 214485989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214485913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384105 + ... + 384662.

It is an arithmetic number, because the mean of its divisors is an integer number (26650624).

Almost surely, 2214485993 is an apocalyptic number.

It is an amenable number.

214485993 is a deficient number, since it is larger than the sum of its proper divisors (105321495).

214485993 is a wasteful number, since it uses less digits than its factorization.

214485993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768804 (or 768801 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 214485993 is about 14645.3403169745. The cubic root of 214485993 is about 598.5948535078.

The spelling of 214485993 in words is "two hundred fourteen million, four hundred eighty-five thousand, nine hundred ninety-three".

Divisors: 1 3 9 31 93 279 768767 2306301 6918903 23831777 71495331 214485993