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315466448896 = 21810972
BaseRepresentation
bin1001001011100110100…
…01000000000000000000
31010011021101210001000201
410211303101000000000
520132033402331041
6400531232454544
731535360400154
oct4456321000000
91104241701021
10315466448896
1111187464a275
12511810aa454
13239961b3611
14113a92a7064
158315410631
hex4973440000

315466448896 has 57 divisors (see below), whose sum is σ = 631507361509. Its totient is φ = 157589438464.

The previous prime is 315466448893. The next prime is 315466448951. The reversal of 315466448896 is 698844664513.

The square root of 315466448896 is 561664.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 89712230400 + 225754218496 = 299520^2 + 475136^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315466448893) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 287571420 + ... + 287572516.

Almost surely, 2315466448896 is an apocalyptic number.

315466448896 is the 561664-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315466448896

315466448896 is an abundant number, since it is smaller than the sum of its proper divisors (316040912613).

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

315466448896 is an frugal number, since it uses more digits than its factorization.

315466448896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230 (or 1099 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 64.

Multiplying 315466448896 by its sum of digits (64), we get a square (20189852729344 = 44933122).

315466448896 divided by its sum of digits (64) gives a square (4929163264 = 702082).

The spelling of 315466448896 in words is "three hundred fifteen billion, four hundred sixty-six million, four hundred forty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 1097 2048 2194 4096 4388 8192 8776 16384 17552 32768 35104 65536 70208 131072 140416 262144 280832 561664 1123328 1203409 2246656 2406818 4493312 4813636 8986624 9627272 17973248 19254544 35946496 38509088 71892992 77018176 143785984 154036352 287571968 308072704 616145408 1232290816 2464581632 4929163264 9858326528 19716653056 39433306112 78866612224 157733224448 315466448896