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161748104960 = 285139720439
BaseRepresentation
bin1001011010100011110…
…0000011011100000000
3120110111111121002012002
42112220330003130000
510122230003324320
6202150035123132
714454161131061
oct2265074033400
9513444532162
10161748104960
1162662652302
12274211434a8
1312339489b60
147b85b5c568
15431a194675
hex25a8f03700

161748104960 has 72 divisors (see below), whose sum is σ = 417240166560. Its totient is φ = 59722371072.

The previous prime is 161748104951. The next prime is 161748104977. The reversal of 161748104960 is 69401847161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4843580 + ... + 4876859.

Almost surely, 2161748104960 is an apocalyptic number.

161748104960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161748104960 is an abundant number, since it is smaller than the sum of its proper divisors (255492061600).

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

161748104960 is an equidigital number, since it uses as much as digits as its factorization.

161748104960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720473 (or 9720459 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 161748104960 in words is "one hundred sixty-one billion, seven hundred forty-eight million, one hundred four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 640 832 1040 1280 1664 2080 3328 4160 8320 16640 9720439 19440878 38881756 48602195 77763512 97204390 126365707 155527024 194408780 252731414 311054048 388817560 505462828 622108096 631828535 777635120 1010925656 1244216192 1263657070 1555270240 2021851312 2488432384 2527314140 3110540480 4043702624 5054628280 6221080960 8087405248 10109256560 12442161920 16174810496 20218513120 32349620992 40437026240 80874052480 161748104960