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513830464 = 267389263
BaseRepresentation
bin11110101000000…
…110111001000000
31022210212021212221
4132220012321000
52023020033324
6122553100424
715506326000
oct3650067100
91283767787
10513830464
11244053484
121240b7714
13825b82c4
144c356000
153019b0e4
hex1ea06e40

513830464 has 112 divisors (see below), whose sum is σ = 1207008000. Its totient is φ = 216910848.

The previous prime is 513830453. The next prime is 513830477. The reversal of 513830464 is 464038315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953597 + ... + 1953859.

Almost surely, 2513830464 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 513830464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603504000).

513830464 is an abundant number, since it is smaller than the sum of its proper divisors (693177536).

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

513830464 is an equidigital number, since it uses as much as digits as its factorization.

513830464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 513830464 is about 22667.8288329518. The cubic root of 513830464 is about 800.9522327829.

Adding to 513830464 its reverse (464038315), we get a palindrome (977868779).

The spelling of 513830464 in words is "five hundred thirteen million, eight hundred thirty thousand, four hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 89 98 112 178 196 224 263 343 356 392 448 526 623 686 712 784 1052 1246 1372 1424 1568 1841 2104 2492 2744 2848 3136 3682 4208 4361 4984 5488 5696 7364 8416 8722 9968 10976 12887 14728 16832 17444 19936 21952 23407 25774 29456 30527 34888 39872 46814 51548 58912 61054 69776 90209 93628 103096 117824 122108 139552 163849 180418 187256 206192 244216 279104 327698 360836 374512 412384 488432 655396 721672 749024 824768 976864 1146943 1310792 1443344 1498048 1953728 2293886 2621584 2886688 4587772 5243168 5773376 8028601 9175544 10486336 16057202 18351088 32114404 36702176 64228808 73404352 128457616 256915232 513830464