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20382507060601 = 724325322832
BaseRepresentation
bin1001010001001101011000…
…00101111100110101111001
32200011112210221222111000011
410220212230011330311321
510132421333301414401
6111203332223541521
74202405345262400
oct450465405746571
980145727874004
1020382507060601
116549199957124
12235232445a8a1
13b4b0a677955a
145067390a6637
152552e0b86451
hex1289ac17cd79

20382507060601 has 81 divisors (see below), whose sum is σ = 24828872409999. Its totient is φ = 16683293626272.

The previous prime is 20382507060583. The next prime is 20382507060613. The reversal of 20382507060601 is 10606070528302.

The square root of 20382507060601 is 4514699.

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., 14693690565225 + 5688816495376 = 3833235^2 + 2385124^2 .

It is not a de Polignac number, because 20382507060601 - 219 = 20382506536313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20382507060301) 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 80 ways as a sum of consecutive naturals, for example, 72022993006 + ... + 72022993288.

Almost surely, 220382507060601 is an apocalyptic number.

20382507060601 is the 4514699-th square number.

20382507060601 is the 2257350-th centered octagonal number.

It is an amenable number.

20382507060601 is a deficient number, since it is larger than the sum of its proper divisors (4446365349398).

20382507060601 is an frugal number, since it uses more digits than its factorization.

20382507060601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

Adding to 20382507060601 its reverse (10606070528302), we get a palindrome (30988577588903).

The spelling of 20382507060601 in words is "twenty trillion, three hundred eighty-two billion, five hundred seven million, sixty thousand, six hundred one".

Divisors: 1 7 43 49 53 283 301 371 1849 1981 2107 2279 2597 2809 12169 12943 13867 14999 15953 19663 80089 85183 90601 97997 104993 111671 120787 137641 523267 560623 596281 644957 685979 734951 794947 845509 3443827 3662869 3924361 4244717 4514699 4801853 5193841 5564629 5918563 24106789 25640083 27733151 29713019 31602893 34182721 36356887 38952403 148084561 168747523 182522831 194132057 207991133 224970001 239279047 254498209 1036591927 1277659817 1358924399 1469857003 1574790007 1674953329 7256143489 7848481733 8943618719 9673710043 10288999021 11023530049 54939372131 67715970301 72022993147 384575604917 415969531849 474011792107 2911786722943 20382507060601