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20341362512 = 2417269317877
BaseRepresentation
bin10010111100011100…
…001000111101010000
31221111121212021120202
4102330130020331100
5313124342100022
613202241554332
71320035504612
oct227434107520
957447767522
1020341362512
1186991947a9
123b383459a8
131bc23284a3
14dad784db2
157e0bea592
hex4bc708f50

20341362512 has 80 divisors (see below), whose sum is σ = 42064874640. Its totient is φ = 9495896064.

The previous prime is 20341362491. The next prime is 20341362539. The reversal of 20341362512 is 21526314302.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 801795856 + 19539566656 = 28316^2 + 139784^2 .

It is a congruent number.

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, 23193818 + ... + 23194694.

It is an arithmetic number, because the mean of its divisors is an integer number (525810933).

Almost surely, 220341362512 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 20341362512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21032437320).

20341362512 is an abundant number, since it is smaller than the sum of its proper divisors (21723512128).

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

20341362512 is a wasteful number, since it uses less digits than its factorization.

20341362512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20341362512 its reverse (21526314302), we get a palindrome (41867676814).

The spelling of 20341362512 in words is "twenty billion, three hundred forty-one million, three hundred sixty-two thousand, five hundred twelve".

Divisors: 1 2 4 8 16 17 34 68 136 269 272 317 538 634 877 1076 1268 1754 2152 2536 3508 4304 4573 5072 5389 7016 9146 10778 14032 14909 18292 21556 29818 36584 43112 59636 73168 85273 86224 119272 170546 235913 238544 278009 341092 471826 556018 682184 943652 1112036 1364368 1449641 1887304 2224072 2899282 3774608 4010521 4448144 4726153 5798564 8021042 9452306 11597128 16042084 18904612 23194256 32084168 37809224 64168336 74784421 75618448 149568842 299137684 598275368 1196550736 1271335157 2542670314 5085340628 10170681256 20341362512