Search a number
-
+
53013020 = 2252719781
BaseRepresentation
bin1100101000111…
…0101000011100
310200202100012012
43022032220130
5102032404040
65132130352
71212413624
oct312165034
9120670165
1053013020
1127a19515
12159069b8
13aca1968
14707d884
1549c2865
hex328ea1c

53013020 has 24 divisors (see below), whose sum is σ = 111749568. Its totient is φ = 21124800.

The previous prime is 53013019. The next prime is 53013031. The reversal of 53013020 is 2031035.

It is a junction number, because it is equal to n+sod(n) for n = 53012986 and 53013004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (4656232).

Almost surely, 253013020 is an apocalyptic number.

It is an amenable number.

53013020 is an abundant number, since it is smaller than the sum of its proper divisors (58736548).

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

53013020 is a wasteful number, since it uses less digits than its factorization.

53013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061 (or 10059 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 53013020 is about 7281.0040516401. The cubic root of 53013020 is about 375.6593319229.

Adding to 53013020 its reverse (2031035), we get a palindrome (55044055).

The spelling of 53013020 in words is "fifty-three million, thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 271 542 1084 1355 2710 5420 9781 19562 39124 48905 97810 195620 2650651 5301302 10602604 13253255 26506510 53013020