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206071030 = 251123471733
BaseRepresentation
bin11000100100001…
…10010011110110
3112100202111022101
430102012103312
5410223233110
632240452314
75051401114
oct1422062366
9470674271
10206071030
11a635a240
125901a09a
1333901729
141d522ab4
151315813a
hexc4864f6

206071030 has 64 divisors (see below), whose sum is σ = 431474688. Its totient is φ = 70111360.

The previous prime is 206071027. The next prime is 206071031. The reversal of 206071030 is 30170602.

206071030 = T134 + T135 + ... + T1073.

It is a junction number, because it is equal to n+sod(n) for n = 206070989 and 206071007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206071031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118044 + ... + 119776.

It is an arithmetic number, because the mean of its divisors is an integer number (6741792).

Almost surely, 2206071030 is an apocalyptic number.

206071030 is an abundant number, since it is smaller than the sum of its proper divisors (225403658).

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

206071030 is a wasteful number, since it uses less digits than its factorization.

206071030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 206071030 is about 14355.1743284434. The cubic root of 206071030 is about 590.6619306527.

The spelling of 206071030 in words is "two hundred six million, seventy-one thousand, thirty".

Divisors: 1 2 5 10 11 22 23 46 47 55 94 110 115 230 235 253 470 506 517 1034 1081 1265 1733 2162 2530 2585 3466 5170 5405 8665 10810 11891 17330 19063 23782 38126 39859 59455 79718 81451 95315 118910 162902 190630 199295 398590 407255 438449 814510 876898 895961 1791922 1873373 2192245 3746746 4384490 4479805 8959610 9366865 18733730 20607103 41214206 103035515 206071030