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160427060372781 = 32521312110962349
BaseRepresentation
bin100100011110100001010101…
…111100100010010100101101
3210001000200021200010210011200
4210132201111330202110231
5132011414104423412111
61325111101335040113
745535321052434056
oct4436412574422455
9701020250123150
10160427060372781
114713180928a224
1215baba09b10039
136b6928c690b67
142b889d558772d
151383121779256
hex91e855f2252d

160427060372781 has 24 divisors (see below), whose sum is σ = 232247163166200. Its totient is φ = 106711880371200.

The previous prime is 160427060372767. The next prime is 160427060372801. The reversal of 160427060372781 is 187273060724061.

160427060372781 is a `hidden beast` number, since 1 + 6 + 0 + 4 + 2 + 7 + 0 + 603 + 7 + 27 + 8 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 37120187556 + 160389940185225 = 192666^2 + 12664515^2 .

It is not a de Polignac number, because 160427060372781 - 213 = 160427060364589 is a prime.

It is a super-2 number, since 2×1604270603727812 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160427060372741) 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 23 ways as a sum of consecutive naturals, for example, 9153195 + ... + 20115543.

It is an arithmetic number, because the mean of its divisors is an integer number (9676965131925).

Almost surely, 2160427060372781 is an apocalyptic number.

It is an amenable number.

160427060372781 is a deficient number, since it is larger than the sum of its proper divisors (71820102793419).

160427060372781 is a wasteful number, since it uses less digits than its factorization.

160427060372781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965997 (or 10965994 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 160427060372781 in words is "one hundred sixty trillion, four hundred twenty-seven billion, sixty million, three hundred seventy-two thousand, seven hundred eighty-one".

Divisors: 1 3 9 521 1563 3121 4689 9363 28089 1626041 4878123 10962349 14634369 32887047 98661141 5711383829 17134151487 34213491229 51402454461 102640473687 307921421061 17825228930309 53475686790927 160427060372781