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4345102505 = 51751118853
BaseRepresentation
bin1000000101111110…
…10000000010101001
3102012211002002002102
410002333100002221
532344321240010
61555054343145
7212450522222
oct40277200251
912184062072
104345102505
11192a773907
12a131baab5
13543281693
142d3108249
151a66e2ba5
hex102fd00a9

4345102505 has 8 divisors (see below), whose sum is σ = 5520836232. Its totient is φ = 3271606528.

The previous prime is 4345102493. The next prime is 4345102513. The reversal of 4345102505 is 5052015434.

It can be written as a sum of positive squares in 4 ways, for example, as 2096540944 + 2248561561 = 45788^2 + 47419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4345102505 - 26 = 4345102441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25559342 + ... + 25559511.

It is an arithmetic number, because the mean of its divisors is an integer number (690104529).

Almost surely, 24345102505 is an apocalyptic number.

It is an amenable number.

4345102505 is a deficient number, since it is larger than the sum of its proper divisors (1175733727).

4345102505 is a wasteful number, since it uses less digits than its factorization.

4345102505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51118875.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 4345102505 is about 65917.3915215097. The cubic root of 4345102505 is about 1631.7990480549.

Adding to 4345102505 its reverse (5052015434), we get a palindrome (9397117939).

The spelling of 4345102505 in words is "four billion, three hundred forty-five million, one hundred two thousand, five hundred five".

Divisors: 1 5 17 85 51118853 255594265 869020501 4345102505