Search a number
-
+
52130331550 = 25211671414663
BaseRepresentation
bin110000100011001101…
…011011101110011110
311222120001102020010101
4300203031123232132
51323230331102200
635540501531314
73523560335623
oct604315335636
9158501366111
1052130331550
1120121238740
12a12a413b3a
134bba21a73b
14274763434a
1515518ee26a
hexc2335bb9e

52130331550 has 48 divisors (see below), whose sum is σ = 107356021632. Its totient is φ = 18673538400.

The previous prime is 52130331527. The next prime is 52130331551. The reversal of 52130331550 is 5513303125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52130331551) 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, 670482 + ... + 744181.

It is an arithmetic number, because the mean of its divisors is an integer number (2236583784).

Almost surely, 252130331550 is an apocalyptic number.

52130331550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52130331550 is an abundant number, since it is smaller than the sum of its proper divisors (55225690082).

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

52130331550 is a wasteful number, since it uses less digits than its factorization.

52130331550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414753 (or 1414748 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 52130331550 its reverse (5513303125), we get a palindrome (57643634675).

The spelling of 52130331550 in words is "fifty-two billion, one hundred thirty million, three hundred thirty-one thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 67 110 134 275 335 550 670 737 1474 1675 3350 3685 7370 18425 36850 1414663 2829326 7073315 14146630 15561293 31122586 35366575 70733150 77806465 94782421 155612930 189564842 389032325 473912105 778064650 947824210 1042606631 2085213262 2369560525 4739121050 5213033155 10426066310 26065165775 52130331550