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25230317321316 = 223194310932354503
BaseRepresentation
bin1011011110010011001000…
…00110011111110001100100
310022022222212012020210221210
411233021210012133301210
511301333142213240231
6125354351530111420
75212554532510662
oct557114406376144
9108288765223853
1025230317321316
118048132413a48
1229b597a27b570
131110293713143
14633222331c32
152db472436a46
hex16f26419fc64

25230317321316 has 96 divisors (see below), whose sum is σ = 63468386544640. Its totient is φ = 7775055340416.

The previous prime is 25230317321311. The next prime is 25230317321327. The reversal of 25230317321316 is 61312371303252.

It is not an unprimeable number, because it can be changed into a prime (25230317321311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9538521 + ... + 11893023.

Almost surely, 225230317321316 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 25230317321316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31734193272320).

25230317321316 is an abundant number, since it is smaller than the sum of its proper divisors (38238069223324).

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

25230317321316 is a wasteful number, since it uses less digits than its factorization.

25230317321316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355665 (or 2355663 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

Adding to 25230317321316 its reverse (61312371303252), we get a palindrome (86542688624568).

The spelling of 25230317321316 in words is "twenty-five trillion, two hundred thirty billion, three hundred seventeen million, three hundred twenty-one thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 19 38 43 57 76 86 114 129 172 228 258 516 817 1093 1634 2186 2451 3268 3279 4372 4902 6558 9804 13116 20767 41534 46999 62301 83068 93998 124602 140997 187996 249204 281994 563988 892981 1785962 2354503 2678943 3571924 4709006 5357886 7063509 9418012 10715772 14127018 28254036 44735557 89471114 101243629 134206671 178942228 202487258 268413342 303730887 404974516 536826684 607461774 1214923548 1923628951 2573471779 3847257902 5146943558 5770886853 7694515804 7720415337 10293887116 11541773706 15440830674 23083547412 30881661348 48895963801 97791927602 110659286497 146687891403 195583855204 221318572994 293375782806 331977859491 442637145988 586751565612 663955718982 1327911437964 2102526443443 4205052886886 6307579330329 8410105773772 12615158660658 25230317321316