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206687132 = 22227227629
BaseRepresentation
bin11000101000111…
…00101110011100
3112101220210102222
430110130232130
5410402442012
632302004512
75056545251
oct1424345634
9471823388
10206687132
11a6740113
1259276738
1333a88ca2
141d643428
151322a972
hexc51cb9c

206687132 has 12 divisors (see below), whose sum is σ = 363297480. Its totient is φ = 102887856.

The previous prime is 206687123. The next prime is 206687167. The reversal of 206687132 is 231786602.

It is a happy number.

206687132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 206687092 and 206687101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112907 + ... + 114722.

It is an arithmetic number, because the mean of its divisors is an integer number (30274790).

Almost surely, 2206687132 is an apocalyptic number.

It is an amenable number.

206687132 is a deficient number, since it is larger than the sum of its proper divisors (156610348).

206687132 is a wasteful number, since it uses less digits than its factorization.

206687132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227860 (or 227858 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 206687132 is about 14376.6175437757. The cubic root of 206687132 is about 591.2499899134.

It can be divided in two parts, 2066 and 87132, that added together give a palindrome (89198).

The spelling of 206687132 in words is "two hundred six million, six hundred eighty-seven thousand, one hundred thirty-two".

Divisors: 1 2 4 227 454 908 227629 455258 910516 51671783 103343566 206687132