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20265020076 = 223719109311617
BaseRepresentation
bin10010110111111000…
…111010101010101100
31221022022012200110010
4102313320322222230
5313000321120301
613150513413220
71315120554120
oct226770725254
957268180403
1020265020076
11865a091584
123b1686a210
131bac578b52
14da3591580
157d916a5d6
hex4b7e3aaac

20265020076 has 96 divisors (see below), whose sum is σ = 56941212160. Its totient is φ = 5479778304.

The previous prime is 20265020071. The next prime is 20265020099. The reversal of 20265020076 is 67002056202.

It is not an unprimeable number, because it can be changed into a prime (20265020071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1738620 + ... + 1750236.

Almost surely, 220265020076 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 20265020076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28470606080).

20265020076 is an abundant number, since it is smaller than the sum of its proper divisors (36676192084).

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

20265020076 is a wasteful number, since it uses less digits than its factorization.

20265020076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12743 (or 12741 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 20265020076 its reverse (67002056202), we get a palindrome (87267076278).

The spelling of 20265020076 in words is "twenty billion, two hundred sixty-five million, twenty thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1093 1596 2186 3279 4372 6558 7651 11617 13116 15302 20767 22953 23234 30604 34851 41534 45906 46468 62301 69702 81319 83068 91812 124602 139404 145369 162638 220723 243957 249204 290738 325276 436107 441446 487914 581476 662169 872214 882892 975828 1324338 1545061 1744428 2648676 3090122 4635183 6180244 9270366 12697381 18540732 25394762 38092143 50789524 76184286 88881667 152368572 177763334 241250239 266645001 355526668 482500478 533290002 723750717 965000956 1066580004 1447501434 1688751673 2895002868 3377503346 5066255019 6755006692 10132510038 20265020076