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160444451980 = 225173713619371
BaseRepresentation
bin1001010101101100111…
…1000000110010001100
3120100010122112122111101
42111123033000302030
510112042234430410
6201412425232444
714406651224401
oct2253317006214
9510118478441
10160444451980
116205378a54a
1227118632724
131218c373267
147aa096a2a8
1542909d1d3a
hex255b3c0c8c

160444451980 has 96 divisors (see below), whose sum is σ = 366703267392. Its totient is φ = 58720665600.

The previous prime is 160444451953. The next prime is 160444452011. The reversal of 160444451980 is 89154444061.

It is a super-3 number, since 3×1604444519803 (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 160444451980.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17116695 + ... + 17126065.

It is an arithmetic number, because the mean of its divisors is an integer number (3819825702).

Almost surely, 2160444451980 is an apocalyptic number.

160444451980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160444451980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183351633696).

160444451980 is an abundant number, since it is smaller than the sum of its proper divisors (206258815412).

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

160444451980 is a wasteful number, since it uses less digits than its factorization.

160444451980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795 (or 10793 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 160444451980 in words is "one hundred sixty billion, four hundred forty-four million, four hundred fifty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 37 68 74 85 148 170 185 340 370 629 740 1258 1361 2516 2722 3145 5444 6290 6805 9371 12580 13610 18742 23137 27220 37484 46274 46855 50357 92548 93710 100714 115685 159307 187420 201428 231370 251785 318614 346727 462740 503570 637228 693454 796535 856069 1007140 1386908 1593070 1712138 1733635 3186140 3424276 3467270 4280345 5894359 6934540 8560690 11788718 12753931 17121380 23577436 25507862 29471795 51015724 58943590 63769655 117887180 127539310 216816827 255078620 433633654 471895447 867267308 943790894 1084084135 1887581788 2168168270 2359477235 4336336540 4718954470 8022222599 9437908940 16044445198 32088890396 40111112995 80222225990 160444451980