Search a number
-
+
53001230420 = 2252650061521
BaseRepresentation
bin110001010111000111…
…101001100001010100
312001210202011110210002
4301113013221201110
51332021303333140
640203132150432
73554264011445
oct612707514124
9161722143702
1053001230420
11205288a3976
12a332008418
134cc8795308
1427cb1772cc
1515a30cd415
hexc571e9854

53001230420 has 12 divisors (see below), whose sum is σ = 111302583924. Its totient is φ = 21200492160.

The previous prime is 53001230411. The next prime is 53001230479. The reversal of 53001230420 is 2403210035.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32452581316 + 20548649104 = 180146^2 + 143348^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2650061521 = 53001230420 / (5 + 3 + 0 + 0 + 1 + 2 + 3 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 53001230392 and 53001230401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325030741 + ... + 1325030780.

It is an arithmetic number, because the mean of its divisors is an integer number (9275215327).

Almost surely, 253001230420 is an apocalyptic number.

It is an amenable number.

53001230420 is an abundant number, since it is smaller than the sum of its proper divisors (58301353504).

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

53001230420 is a wasteful number, since it uses less digits than its factorization.

53001230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650061530 (or 2650061528 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 53001230420 its reverse (2403210035), we get a palindrome (55404440455).

The spelling of 53001230420 in words is "fifty-three billion, one million, two hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2650061521 5300123042 10600246084 13250307605 26500615210 53001230420