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52126620 = 22357139547
BaseRepresentation
bin1100011011011…
…0001110011100
310122002022021120
43012312032130
5101321022440
65101130540
71202032440
oct306661634
9118068246
1052126620
1127473557
1215559a50
13aa51370
146ccc820
154899dd0
hex31b639c

52126620 has 96 divisors (see below), whose sum is σ = 179655168. Its totient is φ = 10996992.

The previous prime is 52126589. The next prime is 52126631. The reversal of 52126620 is 2662125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (1871408).

Almost surely, 252126620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52126620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89827584).

52126620 is an abundant number, since it is smaller than the sum of its proper divisors (127528548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52126620 is a wasteful number, since it uses less digits than its factorization.

52126620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9579 (or 9577 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 52126620 is about 7219.8767302496. The cubic root of 52126620 is about 373.5538256039.

Adding to 52126620 its reverse (2662125), we get a palindrome (54788745).

The spelling of 52126620 in words is "fifty-two million, one hundred twenty-six thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 84 91 105 130 140 156 182 195 210 260 273 364 390 420 455 546 780 910 1092 1365 1820 2730 5460 9547 19094 28641 38188 47735 57282 66829 95470 114564 124111 133658 143205 190940 200487 248222 267316 286410 334145 372333 400974 496444 572820 620555 668290 744666 801948 868777 1002435 1241110 1336580 1489332 1737554 1861665 2004870 2482220 2606331 3475108 3723330 4009740 4343885 5212662 7446660 8687770 10425324 13031655 17375540 26063310 52126620