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316400625025 = 521923121912
BaseRepresentation
bin1001001101010101111…
…00100110010110000001
31010020200111121002202121
410212222330212112001
520140442030000100
6401204043244241
731600462636552
oct4465274462601
91106614532677
10316400625025
111122039a4661
12513a1b19681
1323ab48b4a64
141145739c329
15836c43d51a
hex49aaf26581

316400625025 has 81 divisors (see below), whose sum is σ = 430112789379. Its totient is φ = 230847948000.

The previous prime is 316400625019. The next prime is 316400625029. The reversal of 316400625025 is 520526004613.

The square root of 316400625025 is 562495.

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., 113904225009 + 202496400016 = 337497^2 + 449996^2 .

It is not a de Polignac number, because 316400625025 - 221 = 316398527873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316400625029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1656547680 + ... + 1656547870.

Almost surely, 2316400625025 is an apocalyptic number.

316400625025 is the 562495-th square number.

316400625025 is the 281248-th centered octagonal number.

It is an amenable number.

316400625025 is a deficient number, since it is larger than the sum of its proper divisors (113712164354).

316400625025 is an equidigital number, since it uses as much as digits as its factorization.

316400625025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 316400625025 its reverse (520526004613), we get a palindrome (836926629638).

The spelling of 316400625025 in words is "three hundred sixteen billion, four hundred million, six hundred twenty-five thousand, twenty-five".

Divisors: 1 5 19 25 31 95 155 191 361 475 589 775 955 961 1805 2945 3629 4775 4805 5921 9025 11191 14725 18145 18259 24025 29605 36481 55955 68951 90725 91295 112499 148025 182405 183551 279775 344755 346921 456475 562495 693139 912025 917755 1130911 1723775 1734605 2137481 2812475 3465695 3487469 4588775 5654555 8673025 10687405 13169641 17328475 17437345 21487309 28272775 35058241 53437025 65848205 66261911 87186725 107436545 175291205 329241025 331309555 408258871 537182725 666106579 876456025 1656547775 2041294355 3330532895 10206471775 12656025001 16652664475 63280125005 316400625025