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515106164 = 22128776541
BaseRepresentation
bin11110101100111…
…110010101110100
31022220021002211002
4132230332111310
52023331344124
6123040302432
715523221146
oct3654762564
91286232732
10515106164
11244844981
12124611a18
1382943b61
144c5a8c96
153034e0ae
hex1eb3e574

515106164 has 6 divisors (see below), whose sum is σ = 901435794. Its totient is φ = 257553080.

The previous prime is 515106133. The next prime is 515106197. The reversal of 515106164 is 461601515.

It can be written as a sum of positive squares in only one way, i.e., 297838564 + 217267600 = 17258^2 + 14740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64388267 + ... + 64388274.

It is an arithmetic number, because the mean of its divisors is an integer number (150239299).

Almost surely, 2515106164 is an apocalyptic number.

It is an amenable number.

515106164 is a deficient number, since it is larger than the sum of its proper divisors (386329630).

515106164 is a wasteful number, since it uses less digits than its factorization.

515106164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128776545 (or 128776543 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 515106164 is about 22695.9503876793. The cubic root of 515106164 is about 801.6145331613.

Adding to 515106164 its reverse (461601515), we get a palindrome (976707679).

The spelling of 515106164 in words is "five hundred fifteen million, one hundred six thousand, one hundred sixty-four".

Divisors: 1 2 4 128776541 257553082 515106164