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161046857092 = 221127723895531
BaseRepresentation
bin1001010111111100100…
…1000000010110000100
3120101200122001222221211
42111333021000112010
510114310443411332
6201552305021204
714430614461462
oct2257711002604
9511618058854
10161046857092
1162332830410
1227266324804
13122571017a4
147b1a97b832
1542c8827447
hex257f240584

161046857092 has 48 divisors (see below), whose sum is σ = 308748000960. Its totient is φ = 72895132800.

The previous prime is 161046857089. The next prime is 161046857123. The reversal of 161046857092 is 290758640161.

It is a happy number.

It is a super-2 number, since 2×1610468570922 (a number of 23 digits) contains 22 as substring.

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, 29114367 + ... + 29119897.

It is an arithmetic number, because the mean of its divisors is an integer number (6432250020).

Almost surely, 2161046857092 is an apocalyptic number.

It is an amenable number.

161046857092 is a deficient number, since it is larger than the sum of its proper divisors (147701143868).

161046857092 is a wasteful number, since it uses less digits than its factorization.

161046857092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212 (or 8210 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 161046857092 in words is "one hundred sixty-one billion, forty-six million, eight hundred fifty-seven thousand, ninety-two".

Divisors: 1 2 4 11 22 44 277 554 1108 2389 3047 4778 5531 6094 9556 11062 12188 22124 26279 52558 60841 105116 121682 243364 661753 1323506 1532087 2647012 3064174 6128348 7279283 13213559 14558566 16852957 26427118 29117132 33705914 52854236 67411828 145349149 290698298 581396596 3660155843 7320311686 14640623372 40261714273 80523428546 161046857092