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52311605 = 5100910369
BaseRepresentation
bin1100011110001…
…1011000110101
310122102201000212
43013203120311
5101342432410
65105115205
71203432653
oct307433065
9118381025
1052311605
112758a535
1215628b05
13aab7618
146d39dd3
1548d4b05
hex31e3635

52311605 has 8 divisors (see below), whose sum is σ = 62842200. Its totient is φ = 41803776.

The previous prime is 52311559. The next prime is 52311629. The reversal of 52311605 is 50611325.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 52171729 = 374^2 + 7223^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52311605 is a prime.

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, 140 + ... + 10229.

It is an arithmetic number, because the mean of its divisors is an integer number (7855275).

Almost surely, 252311605 is an apocalyptic number.

It is an amenable number.

52311605 is a deficient number, since it is larger than the sum of its proper divisors (10530595).

52311605 is a wasteful number, since it uses less digits than its factorization.

52311605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 52311605 is about 7232.6761990290. The cubic root of 52311605 is about 373.9951885337.

The spelling of 52311605 in words is "fifty-two million, three hundred eleven thousand, six hundred five".

Divisors: 1 5 1009 5045 10369 51845 10462321 52311605