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206932988 = 22531496551
BaseRepresentation
bin11000101010110…
…00101111111100
3112102101021200202
430111120233330
5410433323423
632311143032
75061621113
oct1425305774
9472337622
10206932988
11a68988a9
1259374a78
1333b43b72
141d6a8c7a
1513278728
hexc558bfc

206932988 has 24 divisors (see below), whose sum is σ = 371498400. Its totient is φ = 100817600.

The previous prime is 206932987. The next prime is 206932991. The reversal of 206932988 is 889239602.

206932988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206932987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28313 + ... + 34863.

It is an arithmetic number, because the mean of its divisors is an integer number (15479100).

Almost surely, 2206932988 is an apocalyptic number.

It is an amenable number.

206932988 is a deficient number, since it is larger than the sum of its proper divisors (164565412).

206932988 is a wasteful number, since it uses less digits than its factorization.

206932988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757 (or 6755 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 206932988 is about 14385.1655534443. The cubic root of 206932988 is about 591.4843292223.

The spelling of 206932988 in words is "two hundred six million, nine hundred thirty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 53 106 149 212 298 596 6551 7897 13102 15794 26204 31588 347203 694406 976099 1388812 1952198 3904396 51733247 103466494 206932988