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268550525 = 5210742021
BaseRepresentation
bin10000000000011…
…100000101111101
3200201022210001202
4100000130011331
51022222104100
642351545245
76440433065
oct2000340575
9621283052
10268550525
11128653a91
1275b2b225
1343839149
14279483a5
151889a7d5
hex1001c17d

268550525 has 6 divisors (see below), whose sum is σ = 333002682. Its totient is φ = 214840400.

The previous prime is 268550521. The next prime is 268550531. The reversal of 268550525 is 525055862.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 74839801 + 193710724 = 8651^2 + 13918^2 .

It is not a de Polignac number, because 268550525 - 22 = 268550521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268550521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5370986 + ... + 5371035.

It is an arithmetic number, because the mean of its divisors is an integer number (55500447).

Almost surely, 2268550525 is an apocalyptic number.

268550525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268550525 is a deficient number, since it is larger than the sum of its proper divisors (64452157).

268550525 is a wasteful number, since it uses less digits than its factorization.

268550525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10742031 (or 10742026 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 268550525 is about 16387.5112509496. The cubic root of 268550525 is about 645.1717388167.

The spelling of 268550525 in words is "two hundred sixty-eight million, five hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 10742021 53710105 268550525