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51352511440750 = 2531315800772751
BaseRepresentation
bin10111010110100011100000…
…01100111110011101101110
320201211020210211001022000221
423223101300030332131232
523212324420412101000
6301115003523241554
713550045051114122
oct1353216014763556
9221736724038027
1051352511440750
11153a9528a509a3
1259145642192ba
1322866a0993b40
14c97690c71582
155e0be3b6561a
hex2eb47033e76e

51352511440750 has 32 divisors (see below), whose sum is σ = 103526663071104. Its totient is φ = 18960927300000.

The previous prime is 51352511440729. The next prime is 51352511440757. The reversal of 51352511440750 is 5704411525315.

It is a junction number, because it is equal to n+sod(n) for n = 51352511440697 and 51352511440706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352511440757) 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, 7900383126 + ... + 7900389625.

It is an arithmetic number, because the mean of its divisors is an integer number (3235208220972).

Almost surely, 251352511440750 is an apocalyptic number.

51352511440750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51352511440750 is an abundant number, since it is smaller than the sum of its proper divisors (52174151630354).

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

51352511440750 is a wasteful number, since it uses less digits than its factorization.

51352511440750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15800772781 (or 15800772771 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 51352511440750 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred eleven million, four hundred forty thousand, seven hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 15800772751 31601545502 79003863755 158007727510 205410045763 395019318775 410820091526 790038637550 1027050228815 1975096593875 2054100457630 3950193187750 5135251144075 10270502288150 25676255720375 51352511440750