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52523020 = 225111931237
BaseRepresentation
bin1100100001011…
…1000000001100
310122211110001001
43020113000030
5101421214040
65113430044
71205303224
oct310270014
9118743031
1052523020
1127714360
121570b324
13ab5c914
146d93084
15492759a
hex321700c

52523020 has 48 divisors (see below), whose sum is σ = 121046688. Its totient is φ = 18984960.

The previous prime is 52522993. The next prime is 52523027. The reversal of 52523020 is 2032525.

It is not an unprimeable number, because it can be changed into a prime (52523027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41842 + ... + 43078.

It is an arithmetic number, because the mean of its divisors is an integer number (2521806).

Almost surely, 252523020 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 52523020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60523344).

52523020 is an abundant number, since it is smaller than the sum of its proper divisors (68523668).

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

52523020 is a wasteful number, since it uses less digits than its factorization.

52523020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 52523020 is about 7247.2767299172. The cubic root of 52523020 is about 374.4983395678.

Adding to 52523020 its reverse (2032525), we get a palindrome (54555545).

The spelling of 52523020 in words is "fifty-two million, five hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 193 220 386 772 965 1237 1930 2123 2474 3860 4246 4948 6185 8492 10615 12370 13607 21230 24740 27214 42460 54428 68035 136070 238741 272140 477482 954964 1193705 2387410 2626151 4774820 5252302 10504604 13130755 26261510 52523020