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2010385920 = 2935673907
BaseRepresentation
bin111011111010100…
…0000111000000000
312012002220012000210
41313311000320000
513104124322140
6531253314120
7100550666304
oct16765007000
95162805023
102010385920
119418a0774
12481335940
1326067278a
14150dddd04
15bb764d80
hex77d40e00

2010385920 has 160 divisors (see below), whose sum is σ = 6524546688. Its totient is φ = 527966208.

The previous prime is 2010385901. The next prime is 2010385931. The reversal of 2010385920 is 295830102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512607 + ... + 516513.

Almost surely, 22010385920 is an apocalyptic number.

2010385920 is a gapful number since it is divisible by the number (20) 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 2010385920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3262273344).

2010385920 is an abundant number, since it is smaller than the sum of its proper divisors (4514160768).

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

2010385920 is an equidigital number, since it uses as much as digits as its factorization.

2010385920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000 (or 3984 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2010385920 is about 44837.3273066092. The cubic root of 2010385920 is about 1262.0981921667.

The spelling of 2010385920 in words is "two billion, ten million, three hundred eighty-five thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 67 80 96 120 128 134 160 192 201 240 256 268 320 335 384 402 480 512 536 640 670 768 804 960 1005 1072 1280 1340 1536 1608 1920 2010 2144 2560 2680 3216 3840 3907 4020 4288 5360 6432 7680 7814 8040 8576 10720 11721 12864 15628 16080 17152 19535 21440 23442 25728 31256 32160 34304 39070 42880 46884 51456 58605 62512 64320 78140 85760 93768 102912 117210 125024 128640 156280 171520 187536 234420 250048 257280 261769 312560 375072 468840 500096 514560 523538 625120 750144 785307 937680 1000192 1047076 1250240 1308845 1500288 1570614 1875360 2000384 2094152 2500480 2617690 3000576 3141228 3750720 3926535 4188304 5000960 5235380 6001152 6282456 7501440 7853070 8376608 10001920 10470760 12564912 15002880 15706140 16753216 20941520 25129824 30005760 31412280 33506432 41883040 50259648 62824560 67012864 83766080 100519296 125649120 134025728 167532160 201038592 251298240 335064320 402077184 502596480 670128640 1005192960 2010385920