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1982751884160 = 27352106749019
BaseRepresentation
bin11100110110100101001…
…110001100001110000000
321000112211101110210002220
4130312211032030032000
5224441133440243120
64114510314011040
7263151303640035
oct34664516141600
97015741423086
101982751884160
116a49758260a3
1228032b716a80
13114c8503b078
146bd73c6538c
1536898b44b40
hex1cda538c380

1982751884160 has 128 divisors (see below), whose sum is σ = 6320450563200. Its totient is φ = 528697952256.

The previous prime is 1982751884149. The next prime is 1982751884167. The reversal of 1982751884160 is 614881572891.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 1982751884094 and 1982751884103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982751884167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40424131 + ... + 40473149.

It is an arithmetic number, because the mean of its divisors is an integer number (49378520025).

Almost surely, 21982751884160 is an apocalyptic number.

1982751884160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982751884160 is an abundant number, since it is smaller than the sum of its proper divisors (4337698679040).

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

1982751884160 is a wasteful number, since it uses less digits than its factorization.

1982751884160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70108 (or 70096 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 60.

The spelling of 1982751884160 in words is "one trillion, nine hundred eighty-two billion, seven hundred fifty-one million, eight hundred eighty-four thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 960 1920 21067 42134 49019 63201 84268 98038 105335 126402 147057 168536 196076 210670 245095 252804 294114 316005 337072 392152 421340 490190 505608 588228 632010 674144 735285 784304 842680 980380 1011216 1176456 1264020 1348288 1470570 1568608 1685360 1960760 2022432 2352912 2528040 2696576 2941140 3137216 3370720 3921520 4044864 4705824 5056080 5882280 6274432 6741440 7843040 8089728 9411648 10112160 11764560 13482880 15686080 18823296 20224320 23529120 31372160 40448640 47058240 94116480 1032683273 2065366546 3098049819 4130733092 5163416365 6196099638 8261466184 10326832730 12392199276 15490249095 16522932368 20653665460 24784398552 30980498190 33045864736 41307330920 49568797104 61960996380 66091729472 82614661840 99137594208 123921992760 132183458944 165229323680 198275188416 247843985520 330458647360 396550376832 495687971040 660917294720 991375942080 1982751884160