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53202605 = 517625913
BaseRepresentation
bin1100101011110…
…0111010101101
310201002222020212
43022330322231
5102104440410
65140152205
71214133431
oct312747255
9121088225
1053202605
11280389a5
1215998665
13b03a041
1470cc9c1
154a0db05
hex32bcead

53202605 has 8 divisors (see below), whose sum is σ = 67598712. Its totient is φ = 40058368.

The previous prime is 53202593. The next prime is 53202613. The reversal of 53202605 is 50620235.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19061956 + 34140649 = 4366^2 + 5843^2 .

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 53202605 - 28 = 53202349 is a prime.

It is a Duffinian number.

It is a congruent 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, 312872 + ... + 313041.

It is an arithmetic number, because the mean of its divisors is an integer number (8449839).

Almost surely, 253202605 is an apocalyptic number.

It is an amenable number.

53202605 is a deficient number, since it is larger than the sum of its proper divisors (14396107).

53202605 is a wasteful number, since it uses less digits than its factorization.

53202605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625935.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53202605 is about 7294.0115848551. The cubic root of 53202605 is about 376.1066097460.

The spelling of 53202605 in words is "fifty-three million, two hundred two thousand, six hundred five".

Divisors: 1 5 17 85 625913 3129565 10640521 53202605