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52242615 = 32517471453
BaseRepresentation
bin1100011101001…
…0100010110111
310122022012101200
43013102202313
5101333230430
65103423543
71203024555
oct307224267
9118265350
1052242615
1127542717
12155b4bb3
13aa920b9
146d1cbd5
1548be460
hex31d28b7

52242615 has 48 divisors (see below), whose sum is σ = 97987968. Its totient is φ = 25648128.

The previous prime is 52242611. The next prime is 52242629. The reversal of 52242615 is 51624225.

52242615 is a `hidden beast` number, since 5 + 2 + 2 + 42 + 615 = 666.

It is not a de Polignac number, because 52242615 - 22 = 52242611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52242611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35229 + ... + 36681.

It is an arithmetic number, because the mean of its divisors is an integer number (2041416).

Almost surely, 252242615 is an apocalyptic number.

52242615 is a deficient number, since it is larger than the sum of its proper divisors (45745353).

52242615 is a wasteful number, since it uses less digits than its factorization.

52242615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1525 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 52242615 is about 7227.9052982175. The cubic root of 52242615 is about 373.8307044507.

The spelling of 52242615 in words is "fifty-two million, two hundred forty-two thousand, six hundred fifteen".

Divisors: 1 3 5 9 15 17 45 47 51 85 141 153 235 255 423 705 765 799 1453 2115 2397 3995 4359 7191 7265 11985 13077 21795 24701 35955 65385 68291 74103 123505 204873 222309 341455 370515 614619 1024365 1111545 1160947 3073095 3482841 5804735 10448523 17414205 52242615