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61061059868956 = 22731136453515539
BaseRepresentation
bin11011110001000111000101…
…10010000111100100011100
322000012101021020201200002021
431320203202302013210130
531000411022311301311
6333511021425505524
715601341662133220
oct1570434262074434
9260171236650067
1061061059868956
111850193948a314
126a220614a22a4
13280c0580437b4
14111152a2c6780
1570d511b27171
hex3788e2c8791c

61061059868956 has 48 divisors (see below), whose sum is σ = 126062711326720. Its totient is φ = 25324628823360.

The previous prime is 61061059868947. The next prime is 61061059868969. The reversal of 61061059868956 is 65986895016016.

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, 118183435 + ... + 118698973.

Almost surely, 261061059868956 is an apocalyptic number.

It is an amenable number.

61061059868956 is an abundant number, since it is smaller than the sum of its proper divisors (65001651457764).

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

61061059868956 is a wasteful number, since it uses less digits than its factorization.

61061059868956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652034 (or 652032 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 70.

The spelling of 61061059868956 in words is "sixty-one trillion, sixty-one billion, fifty-nine million, eight hundred sixty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 136453 272906 515539 545812 955171 1031078 1910342 2062156 3608773 3820684 4230043 7217546 8460086 14435092 15981709 16920172 29610301 31963418 59220602 63926836 111871963 118441204 223743926 447487852 70346843167 140693686334 281387372668 492427902169 984855804338 1969711608676 2180752138177 4361504276354 8723008552708 15265264967239 30530529934478 61061059868956