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52052520 = 23351361547
BaseRepresentation
bin1100011010010…
…0001000101000
310121221112122010
43012210020220
5101311140040
65055355520
71201303422
oct306441050
9117845563
1052052520
1127422913
1215522ba0
13aa26710
146cad812
154882e80
hex31a4228

52052520 has 128 divisors (see below), whose sum is σ = 171239040. Its totient is φ = 12579840.

The previous prime is 52052513. The next prime is 52052549. The reversal of 52052520 is 2525025.

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, 94887 + ... + 95433.

It is an arithmetic number, because the mean of its divisors is an integer number (1337805).

Almost surely, 252052520 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 52052520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85619520).

52052520 is an abundant number, since it is smaller than the sum of its proper divisors (119186520).

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

52052520 is a wasteful number, since it uses less digits than its factorization.

52052520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 52052520 is about 7214.7432386745. The cubic root of 52052520 is about 373.3767346085.

Adding to 52052520 its reverse (2525025), we get a palindrome (54577545).

The spelling of 52052520 in words is "fifty-two million, fifty-two thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 61 65 78 104 120 122 130 156 183 195 244 260 305 312 366 390 488 520 547 610 732 780 793 915 1094 1220 1464 1560 1586 1641 1830 2188 2379 2440 2735 3172 3282 3660 3965 4376 4758 5470 6344 6564 7111 7320 7930 8205 9516 10940 11895 13128 14222 15860 16410 19032 21333 21880 23790 28444 31720 32820 33367 35555 42666 47580 56888 65640 66734 71110 85332 95160 100101 106665 133468 142220 166835 170664 200202 213330 266936 284440 333670 400404 426660 433771 500505 667340 800808 853320 867542 1001010 1301313 1334680 1735084 2002020 2168855 2602626 3470168 4004040 4337710 5205252 6506565 8675420 10410504 13013130 17350840 26026260 52052520