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206461125 = 32531319743
BaseRepresentation
bin11000100111001…
…01100011000101
3112101111022102100
430103211203011
5410323224000
632253102313
75054614323
oct1423454305
9471438370
10206461125
11a65a6332
1259187999
1333a0a160
141d5c4d13
15131d3a00
hexc4e58c5

206461125 has 96 divisors (see below), whose sum is σ = 422472960. Its totient is φ = 96163200.

The previous prime is 206461111. The next prime is 206461139. The reversal of 206461125 is 521164602.

206461125 is a `hidden beast` number, since 2 + 0 + 646 + 1 + 12 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (206461111) and next prime (206461139).

It is not a de Polignac number, because 206461125 - 25 = 206461093 is a prime.

It is a super-2 number, since 2×2064611252 = 85252392272531250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 277504 + ... + 278246.

It is an arithmetic number, because the mean of its divisors is an integer number (4400760).

Almost surely, 2206461125 is an apocalyptic number.

206461125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206461125 is an abundant number, since it is smaller than the sum of its proper divisors (216011835).

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

206461125 is a wasteful number, since it uses less digits than its factorization.

206461125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 206461125 is about 14368.7551652883. The cubic root of 206461125 is about 591.0344058233.

The spelling of 206461125 in words is "two hundred six million, four hundred sixty-one thousand, one hundred twenty-five".

Divisors: 1 3 5 9 13 15 19 25 39 45 57 65 75 95 117 125 171 195 225 247 285 325 375 475 585 741 743 855 975 1125 1235 1425 1625 2223 2229 2375 2925 3705 3715 4275 4875 6175 6687 7125 9659 11115 11145 14117 14625 18525 18575 21375 28977 30875 33435 42351 48295 55575 55725 70585 86931 92625 92875 127053 144885 167175 183521 211755 241475 277875 278625 352925 434655 550563 635265 724425 835875 917605 1058775 1207375 1651689 1764625 2173275 2752815 3176325 3622125 4588025 5293875 8258445 10866375 13764075 15881625 22940125 41292225 68820375 206461125