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52247715 = 35131715761
BaseRepresentation
bin1100011101001…
…1110010100011
310122022110101120
43013103302203
5101333411330
65103503323
71203045462
oct307236243
9118273346
1052247715
1127546533
12155b7b43
13aa94510
146d209d9
1548c0c10
hex31d3ca3

52247715 has 32 divisors (see below), whose sum is σ = 95328576. Its totient is φ = 24207360.

The previous prime is 52247707. The next prime is 52247719. The reversal of 52247715 is 51774225.

It is not a de Polignac number, because 52247715 - 23 = 52247707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52247719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4566 + ... + 11195.

It is an arithmetic number, because the mean of its divisors is an integer number (2979018).

Almost surely, 252247715 is an apocalyptic number.

52247715 is a deficient number, since it is larger than the sum of its proper divisors (43080861).

52247715 is a wasteful number, since it uses less digits than its factorization.

52247715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799.

The product of its digits is 19600, while the sum is 33.

The square root of 52247715 is about 7228.2580889174. The cubic root of 52247715 is about 373.8428686871.

The spelling of 52247715 in words is "fifty-two million, two hundred forty-seven thousand, seven hundred fifteen".

Divisors: 1 3 5 13 15 17 39 51 65 85 195 221 255 663 1105 3315 15761 47283 78805 204893 236415 267937 614679 803811 1024465 1339685 3073395 3483181 4019055 10449543 17415905 52247715