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4005880380 = 2233517941443
BaseRepresentation
bin1110111011000100…
…1110001000111100
3101100011202210211000
43232301032020330
531201001133010
61501255530300
7201161264355
oct35661161074
911304683730
104005880380
111776240247
12939689990
134bac00128
142a0044d2c
15186a377c0
hexeec4e23c

4005880380 has 96 divisors (see below), whose sum is σ = 12532665600. Its totient is φ = 1062241344.

The previous prime is 4005880363. The next prime is 4005880381. The reversal of 4005880380 is 830885004.

4005880380 is a `hidden beast` number, since 40 + 0 + 588 + 0 + 38 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005880381) by changing a digit.

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, 75939 + ... + 117381.

It is an arithmetic number, because the mean of its divisors is an integer number (130548600).

Almost surely, 24005880380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4005880380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6266332800).

4005880380 is an abundant number, since it is smaller than the sum of its proper divisors (8526785220).

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

4005880380 is a wasteful number, since it uses less digits than its factorization.

4005880380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41640 (or 41632 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 4005880380 is about 63292.0246160604. The cubic root of 4005880380 is about 1588.1785478781.

The spelling of 4005880380 in words is "four billion, five million, eight hundred eighty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 179 180 270 358 537 540 716 895 1074 1611 1790 2148 2685 3222 3580 4833 5370 6444 8055 9666 10740 16110 19332 24165 32220 41443 48330 82886 96660 124329 165772 207215 248658 372987 414430 497316 621645 745974 828860 1118961 1243290 1491948 1864935 2237922 2486580 3729870 4475844 5594805 7418297 7459740 11189610 14836594 22254891 22379220 29673188 37091485 44509782 66764673 74182970 89019564 111274455 133529346 148365940 200294019 222548910 267058692 333823365 400588038 445097820 667646730 801176076 1001470095 1335293460 2002940190 4005880380