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161418998102752 = 2513244587669437
BaseRepresentation
bin100100101100111101001010…
…000010101011101011100000
3210011112111122111222110100001
4210230331022002223223200
5132124142102003242002
61331150510343105344
746000065152142505
oct4454751202535340
9704474574873301
10161418998102752
114748445a276335
12161300bba42254
136c0b991553300
142bc0a14d574ac
15139dd2a2e4a87
hex92cf4a0abae0

161418998102752 has 72 divisors (see below), whose sum is σ = 344127985900776. Its totient is φ = 74499293846016.

The previous prime is 161418998102743. The next prime is 161418998102827. The reversal of 161418998102752 is 257201899814161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240791778 + ... + 241461214.

It is an arithmetic number, because the mean of its divisors is an integer number (4779555359733).

Almost surely, 2161418998102752 is an apocalyptic number.

It is an amenable number.

161418998102752 is an abundant number, since it is smaller than the sum of its proper divisors (182708987798024).

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

161418998102752 is a wasteful number, since it uses less digits than its factorization.

161418998102752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714060 (or 714039 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 64.

The spelling of 161418998102752 in words is "one hundred sixty-one trillion, four hundred eighteen billion, nine hundred ninety-eight million, one hundred two thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 169 208 338 416 676 1352 2704 5408 44587 89174 178348 356696 579631 669437 713392 1159262 1338874 1426784 2318524 2677748 4637048 5355496 7535203 8702681 9274096 10710992 15070406 17405362 18548192 21421984 30140812 34810724 60281624 69621448 113134853 120563248 139242896 226269706 241126496 278485792 452539412 905078824 1810157648 3620315296 29848187519 59696375038 119392750076 238785500152 388026437747 477571000304 776052875494 955142000608 1552105750988 3104211501976 5044343690711 6208423003952 10088687381422 12416846007904 20177374762844 40354749525688 80709499051376 161418998102752