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52102229 = 179413257
BaseRepresentation
bin1100011011000…
…0010001010101
310122001001211012
43012300101111
5101314232404
65100422005
71201601354
oct306602125
9118031735
1052102229
11274571a3
1215547905
13aa4322a
146cc399b
154892a6e
hex31b0455

52102229 has 8 divisors (see below), whose sum is σ = 55242648. Its totient is φ = 48970240.

The previous prime is 52102213. The next prime is 52102243. The reversal of 52102229 is 92220125.

It can be written as a sum of positive squares in 4 ways, for example, as 26801329 + 25300900 = 5177^2 + 5030^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 52102229 - 24 = 52102213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52102279) 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 7 ways as a sum of consecutive naturals, for example, 14369 + ... + 17625.

It is an arithmetic number, because the mean of its divisors is an integer number (6905331).

Almost surely, 252102229 is an apocalyptic number.

It is an amenable number.

52102229 is a deficient number, since it is larger than the sum of its proper divisors (3140419).

52102229 is a wasteful number, since it uses less digits than its factorization.

52102229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52102229 is about 7218.1873763432. The cubic root of 52102229 is about 373.4955522888.

The spelling of 52102229 in words is "fifty-two million, one hundred two thousand, two hundred twenty-nine".

Divisors: 1 17 941 3257 15997 55369 3064837 52102229