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206031030 = 23567102503
BaseRepresentation
bin11000100011111…
…00100010110110
3112100200110102220
430101330202312
5410220443110
632235543210
75051143362
oct1421744266
9470613386
10206031030
11a6332187
1258bbab06
13338b946a
141d5122a2
151314b370
hexc47c8b6

206031030 has 32 divisors (see below), whose sum is σ = 501859584. Its totient is φ = 54121056.

The previous prime is 206031029. The next prime is 206031043. The reversal of 206031030 is 30130602.

206031030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49242 + ... + 53261.

It is an arithmetic number, because the mean of its divisors is an integer number (15683112).

Almost surely, 2206031030 is an apocalyptic number.

206031030 is an abundant number, since it is smaller than the sum of its proper divisors (295828554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206031030 is a wasteful number, since it uses less digits than its factorization.

206031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102580.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 206031030 is about 14353.7810349747. The cubic root of 206031030 is about 590.6237108116.

Adding to 206031030 its reverse (30130602), we get a palindrome (236161632).

The spelling of 206031030 in words is "two hundred six million, thirty-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 102503 205006 307509 512515 615018 1025030 1537545 3075090 6867701 13735402 20603103 34338505 41206206 68677010 103015515 206031030