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468705913641 = 3472108672
BaseRepresentation
bin1101101001000010000…
…11001010101100101001
31122210210220212102010000
412310201003022230221
530134402203214031
6555153122213213
745601653350100
oct6644103125451
91583726772100
10468705913641
111708602a6209
1276a087b4209
133527793b604
1418984d97037
15c2d35d63e6
hex6d210cab29

468705913641 has 45 divisors (see below), whose sum is σ = 814553335629. Its totient is φ = 267807304296.

The previous prime is 468705913619. The next prime is 468705913721. The reversal of 468705913641 is 146319507864.

The square root of 468705913641 is 684621.

It is a perfect power (a square), and thus also a powerful number.

468705913641 is a `hidden beast` number, since 4 + 6 + 8 + 7 + 0 + 591 + 3 + 6 + 41 = 666.

It is not a de Polignac number, because 468705913641 - 29 = 468705913129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (468705913441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 43125690 + ... + 43136556.

Almost surely, 2468705913641 is an apocalyptic number.

468705913641 is the 684621-st square number.

468705913641 is the 342311-st centered octagonal number.

It is an amenable number.

468705913641 is a deficient number, since it is larger than the sum of its proper divisors (345847421988).

468705913641 is an frugal number, since it uses more digits than its factorization.

468705913641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21760 (or 10877 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 468705913641 in words is "four hundred sixty-eight billion, seven hundred five million, nine hundred thirteen thousand, six hundred forty-one".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 441 567 1323 3969 10867 32601 76069 97803 228207 293409 532483 684621 880227 1597449 2053863 4792347 6161589 14377041 43131123 118091689 354275067 826641823 1062825201 2479925469 3188475603 5786492761 7439776407 9565426809 17359478283 22319329221 52078434849 66957987663 156235304547 468705913641