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513212672 = 2872163251
BaseRepresentation
bin11110100101110…
…000000100000000
31022202200220102202
4132211300010000
52022340301142
6122531532332
715501143600
oct3645600400
91282626382
10513212672
11243771305
12123a5a0a8
138243004b
144c234c00
15300c8032
hex1e970100

513212672 has 108 divisors (see below), whose sum is σ = 1203760656. Its totient is φ = 217728000.

The previous prime is 513212659. The next prime is 513212683. The reversal of 513212672 is 276212315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2044547 + ... + 2044797.

It is an arithmetic number, because the mean of its divisors is an integer number (11145932).

Almost surely, 2513212672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513212672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601880328).

513212672 is an abundant number, since it is smaller than the sum of its proper divisors (690547984).

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

513212672 is a wasteful number, since it uses less digits than its factorization.

513212672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 423 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 513212672 is about 22654.1976684234. The cubic root of 513212672 is about 800.6311020069.

Adding to 513212672 its reverse (276212315), we get a palindrome (789424987).

The spelling of 513212672 in words is "five hundred thirteen million, two hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 163 196 224 251 256 326 392 448 502 652 784 896 1004 1141 1304 1568 1757 1792 2008 2282 2608 3136 3514 4016 4564 5216 6272 7028 7987 8032 9128 10432 12299 12544 14056 15974 16064 18256 20864 24598 28112 31948 32128 36512 40913 41728 49196 56224 63896 64256 73024 81826 98392 112448 127792 146048 163652 196784 224896 255584 286391 292096 327304 393568 449792 511168 572782 654608 787136 1022336 1145564 1309216 1574272 2004737 2044672 2291128 2618432 3148544 4009474 4582256 5236864 8018948 9164512 10473728 16037896 18329024 32075792 36658048 64151584 73316096 128303168 256606336 513212672