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52101605 = 510420321
BaseRepresentation
bin1100011011000…
…0000111100101
310122001000222002
43012300013211
5101314222410
65100415045
71201566503
oct306600745
9118030862
1052101605
1127456786
1215547485
13aa42b6a
146cc3673
1548927a5
hex31b01e5

52101605 has 4 divisors (see below), whose sum is σ = 62521932. Its totient is φ = 41681280.

The previous prime is 52101593. The next prime is 52101613. The reversal of 52101605 is 50610125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 43256929 = 2974^2 + 6577^2 .

It is not a de Polignac number, because 52101605 - 24 = 52101589 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 3 ways as a sum of consecutive naturals, for example, 5210156 + ... + 5210165.

It is an arithmetic number, because the mean of its divisors is an integer number (15630483).

Almost surely, 252101605 is an apocalyptic number.

It is an amenable number.

52101605 is a deficient number, since it is larger than the sum of its proper divisors (10420327).

52101605 is a wasteful number, since it uses less digits than its factorization.

52101605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420326.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 52101605 is about 7218.1441520657. The cubic root of 52101605 is about 373.4940612319.

The spelling of 52101605 in words is "fifty-two million, one hundred one thousand, six hundred five".

Divisors: 1 5 10420321 52101605