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2385920 = 2115233
BaseRepresentation
bin1001000110100000000000
311111012212102
421012200000
51102322140
6123045532
726165015
oct11064000
94435772
102385920
11138a639
129708a8
13656cb4
1446170c
15321e15
hex246800

2385920 has 48 divisors (see below), whose sum is σ = 5749380. Its totient is φ = 950272.

The previous prime is 2385919. The next prime is 2385931. The reversal of 2385920 is 295832.

It can be written as a sum of positive squares in 2 ways, for example, as 2262016 + 123904 = 1504^2 + 352^2 .

It is a super-2 number, since 2×23859202 = 11385228492800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10124 + ... + 10356.

22385920 is an apocalyptic number.

2385920 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 2385920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874690).

2385920 is an abundant number, since it is smaller than the sum of its proper divisors (3363460).

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

2385920 is an equidigital number, since it uses as much as digits as its factorization.

2385920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2385920 is about 1544.6423534268. The cubic root of 2385920 is about 133.6242536674.

The spelling of 2385920 in words is "two million, three hundred eighty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 233 256 320 466 512 640 932 1024 1165 1280 1864 2048 2330 2560 3728 4660 5120 7456 9320 10240 14912 18640 29824 37280 59648 74560 119296 149120 238592 298240 477184 596480 1192960 2385920