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20371424440376 = 23171921999207569
BaseRepresentation
bin1001010000111000101111…
…00001000111000000111000
32200010111012121002001010102
410220130113201013000320
510132231134124043001
6111154300404534532
74201533613461302
oct450342741070070
980114177061112
1020371424440376
116544522018559
1223501509b1448
13b4a02b6b4cc9
14505da724a972
15254d92c26e6b
hex128717847038

20371424440376 has 96 divisors (see below), whose sum is σ = 42705451800000. Its totient is φ = 9077410271232.

The previous prime is 20371424440343. The next prime is 20371424440439. The reversal of 20371424440376 is 67304442417302.

It is a self number, because there is not a number n which added to its sum of digits gives 20371424440376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98039120 + ... + 98246688.

It is an arithmetic number, because the mean of its divisors is an integer number (444848456250).

Almost surely, 220371424440376 is an apocalyptic number.

It is an amenable number.

20371424440376 is an abundant number, since it is smaller than the sum of its proper divisors (22334027359624).

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

20371424440376 is a wasteful number, since it uses less digits than its factorization.

20371424440376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209629 (or 209606 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 47.

Adding to 20371424440376 its reverse (67304442417302), we get a palindrome (87675866857678).

The spelling of 20371424440376 in words is "twenty trillion, three hundred seventy-one billion, four hundred twenty-four million, four hundred forty thousand, three hundred seventy-six".

Divisors: 1 2 4 8 17 19 34 38 68 76 136 152 323 361 646 722 1292 1444 1999 2584 2888 3998 6137 7996 12274 15992 24548 33983 37981 49096 67966 75962 135932 151924 207569 271864 303848 415138 645677 721639 830276 1291354 1443278 1660552 2582708 2886556 3528673 3943811 5165416 5773112 7057346 7887622 12267863 14114692 15775244 24535726 28229384 31550488 49071452 67044787 74932409 98142904 134089574 149864818 268179148 299729636 414930431 536358296 599459272 829860862 1273850953 1659721724 2547701906 3319443448 5095403812 7053817327 7883678189 10190807624 14107634654 15767356378 28215269308 31534712756 56430538616 63069425512 134022529213 149789885591 268045058426 299579771182 536090116852 599159542364 1072180233704 1198319084728 2546428055047 5092856110094 10185712220188 20371424440376