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53107205 = 510621441
BaseRepresentation
bin1100101010010…
…1101000000101
310200221010101112
43022211220011
5102043412310
65134134405
71213255334
oct312455005
9120833345
1053107205
1127a83258
1215951405
13b0057a8
1470a5d1b
1549e0705
hex32a5a05

53107205 has 4 divisors (see below), whose sum is σ = 63728652. Its totient is φ = 42485760.

The previous prime is 53107189. The next prime is 53107267. The reversal of 53107205 is 50270135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50270135 = 510054027.

It can be written as a sum of positive squares in 2 ways, for example, as 5317636 + 47789569 = 2306^2 + 6913^2 .

It is not a de Polignac number, because 53107205 - 24 = 53107189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5310716 + ... + 5310725.

It is an arithmetic number, because the mean of its divisors is an integer number (15932163).

Almost surely, 253107205 is an apocalyptic number.

It is an amenable number.

53107205 is a deficient number, since it is larger than the sum of its proper divisors (10621447).

53107205 is a wasteful number, since it uses less digits than its factorization.

53107205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10621446.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 53107205 is about 7287.4690393853. The cubic root of 53107205 is about 375.8816706456.

It can be divided in two parts, 53 and 107205, that multiplied together give a palindrome (5681865).

The spelling of 53107205 in words is "fifty-three million, one hundred seven thousand, two hundred five".

Divisors: 1 5 10621441 53107205