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252551105 = 550819941
BaseRepresentation
bin11110000110110…
…01111111000001
3122121012220222122
433003121333001
51004123113410
641021014025
76154435412
oct1703317701
9577186878
10252551105
1111a616424
12706b4315
1340426931
1425781809
1517289e55
hexf0d9fc1

252551105 has 8 divisors (see below), whose sum is σ = 303151464. Its totient is φ = 201980800.

The previous prime is 252551081. The next prime is 252551113. The reversal of 252551105 is 501155252.

It can be written as a sum of positive squares in 4 ways, for example, as 17572864 + 234978241 = 4192^2 + 15329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-252551105 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20435 + ... + 30375.

It is an arithmetic number, because the mean of its divisors is an integer number (37893933).

Almost surely, 2252551105 is an apocalyptic number.

It is an amenable number.

252551105 is a deficient number, since it is larger than the sum of its proper divisors (50600359).

252551105 is an equidigital number, since it uses as much as digits as its factorization.

252551105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15027.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 252551105 is about 15891.8565624033. The cubic root of 252551105 is about 632.0960712590.

The spelling of 252551105 in words is "two hundred fifty-two million, five hundred fifty-one thousand, one hundred five".

Divisors: 1 5 5081 9941 25405 49705 50510221 252551105