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53115203100 = 223521011752977
BaseRepresentation
bin110001011101111010…
…011010111000011100
312002002200121212220110
4301131322122320130
51332234442444400
640222323050020
73560146530351
oct613572327034
9162080555813
1053115203100
1120587169273
12a364210910
13501628b97b
1427dc364628
1515ad0e2e50
hexc5de9ae1c

53115203100 has 72 divisors (see below), whose sum is σ = 155201660208. Its totient is φ = 14023808000.

The previous prime is 53115203059. The next prime is 53115203107. The reversal of 53115203100 is 130251135.

It is a super-2 number, since 2×531152031002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115203107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 846189 + ... + 906788.

It is an arithmetic number, because the mean of its divisors is an integer number (2155578614).

Almost surely, 253115203100 is an apocalyptic number.

53115203100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53115203100 is an abundant number, since it is smaller than the sum of its proper divisors (102086457108).

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

53115203100 is a wasteful number, since it uses less digits than its factorization.

53115203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753095 (or 1753088 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 53115203100 its reverse (130251135), we get a palindrome (53245454235).

The spelling of 53115203100 in words is "fifty-three billion, one hundred fifteen million, two hundred three thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 101 150 202 300 303 404 505 606 1010 1212 1515 2020 2525 3030 5050 6060 7575 10100 15150 30300 1752977 3505954 5258931 7011908 8764885 10517862 17529770 21035724 26294655 35059540 43824425 52589310 87648850 105178620 131473275 175297700 177050677 262946550 354101354 525893100 531152031 708202708 885253385 1062304062 1770506770 2124608124 2655760155 3541013540 4426266925 5311520310 8852533850 10623040620 13278800775 17705067700 26557601550 53115203100