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512720070 = 23517090669
BaseRepresentation
bin11110100011110…
…111110011000110
31022201202212201020
4132203313303012
52022224020240
6122513212010
715464022462
oct3643676306
91281685636
10512720070
112434651a5
12123861006
13822b9a75
144c1474a2
153002c0d0
hex1e8f7cc6

512720070 has 16 divisors (see below), whose sum is σ = 1230528240. Its totient is φ = 136725344.

The previous prime is 512720069. The next prime is 512720093. The reversal of 512720070 is 70027215.

It is a self number, because there is not a number n which added to its sum of digits gives 512720070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8545305 + ... + 8545364.

It is an arithmetic number, because the mean of its divisors is an integer number (76908015).

Almost surely, 2512720070 is an apocalyptic number.

512720070 is an abundant number, since it is smaller than the sum of its proper divisors (717808170).

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

512720070 is a wasteful number, since it uses less digits than its factorization.

512720070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17090679.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 512720070 is about 22643.3228568600. The cubic root of 512720070 is about 800.3748607801.

Adding to 512720070 its reverse (70027215), we get a palindrome (582747285).

The spelling of 512720070 in words is "five hundred twelve million, seven hundred twenty thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 17090669 34181338 51272007 85453345 102544014 170906690 256360035 512720070