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206956325 = 5229285457
BaseRepresentation
bin11000101010111…
…10011100100101
3112102102110201002
430111132130211
5410440100300
632311443045
75062046132
oct1425363445
9472373632
10206956325
11a6904394
1259386485
1333b51684
141d6b3589
15132805d5
hexc55e725

206956325 has 12 divisors (see below), whose sum is σ = 265475940. Its totient is φ = 159855360.

The previous prime is 206956307. The next prime is 206956349. The reversal of 206956325 is 523659602.

It can be written as a sum of positive squares in 6 ways, for example, as 229441 + 206726884 = 479^2 + 14378^2 .

It is not a de Polignac number, because 206956325 - 218 = 206694181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142004 + ... + 143453.

It is an arithmetic number, because the mean of its divisors is an integer number (22122995).

Almost surely, 2206956325 is an apocalyptic number.

206956325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206956325 is a deficient number, since it is larger than the sum of its proper divisors (58519615).

206956325 is a wasteful number, since it uses less digits than its factorization.

206956325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285496 (or 285491 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 206956325 is about 14385.9766786965. The cubic root of 206956325 is about 591.5065633943.

The spelling of 206956325 in words is "two hundred six million, nine hundred fifty-six thousand, three hundred twenty-five".

Divisors: 1 5 25 29 145 725 285457 1427285 7136425 8278253 41391265 206956325