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382012840 = 23511868211
BaseRepresentation
bin10110110001010…
…000110110101000
3222121211021002201
4112301100312220
51240243402330
6101523505544
712316025026
oct2661206650
9877737081
10382012840
111866aa9a0
12a7b282b4
13611b4401
1438a41716
152380deca
hex16c50da8

382012840 has 32 divisors (see below), whose sum is σ = 937668960. Its totient is φ = 138913600.

The previous prime is 382012837. The next prime is 382012843. The reversal of 382012840 is 48210283.

It is an interprime number because it is at equal distance from previous prime (382012837) and next prime (382012843).

It is a junction number, because it is equal to n+sod(n) for n = 382012799 and 382012808.

It is not an unprimeable number, because it can be changed into a prime (382012843) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 433666 + ... + 434545.

It is an arithmetic number, because the mean of its divisors is an integer number (29302155).

Almost surely, 2382012840 is an apocalyptic number.

It is an amenable number.

382012840 is an abundant number, since it is smaller than the sum of its proper divisors (555656120).

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

382012840 is a wasteful number, since it uses less digits than its factorization.

382012840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868233 (or 868229 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 382012840 is about 19545.1487587074. The cubic root of 382012840 is about 725.5922801816.

It can be divided in two parts, 38201 and 2840, that added together give a triangular number (41041 = T286).

The spelling of 382012840 in words is "three hundred eighty-two million, twelve thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 868211 1736422 3472844 4341055 6945688 8682110 9550321 17364220 19100642 34728440 38201284 47751605 76402568 95503210 191006420 382012840