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5130105642 = 232285005869
BaseRepresentation
bin1001100011100011…
…10011001100101010
3111020112012100221200
410301301303030222
541001301340032
62205015545030
7241062115134
oct46161631452
914215170850
105130105642
1121a28a1332
12bb208b176
13639ab348c
1436948c054
152005a647c
hex131c7332a

5130105642 has 12 divisors (see below), whose sum is σ = 11115228930. Its totient is φ = 1710035208.

The previous prime is 5130105641. The next prime is 5130105731. The reversal of 5130105642 is 2465010315.

5130105642 is a `hidden beast` number, since 5 + 1 + 3 + 0 + 10 + 5 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5090679801 + 39425841 = 71349^2 + 6279^2 .

It is not an unprimeable number, because it can be changed into a prime (5130105641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142502917 + ... + 142502952.

Almost surely, 25130105642 is an apocalyptic number.

5130105642 is an abundant number, since it is smaller than the sum of its proper divisors (5985123288).

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

5130105642 is a wasteful number, since it uses less digits than its factorization.

5130105642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285005877 (or 285005874 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5130105642 is about 71624.7557901596. The cubic root of 5130105642 is about 1724.6809622959.

Adding to 5130105642 its reverse (2465010315), we get a palindrome (7595115957).

The spelling of 5130105642 in words is "five billion, one hundred thirty million, one hundred five thousand, six hundred forty-two".

Divisors: 1 2 3 6 9 18 285005869 570011738 855017607 1710035214 2565052821 5130105642