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220260960 = 25325152959
BaseRepresentation
bin11010010000011…
…10101001100000
3120100110102020100
431020032221200
5422341322320
633504542400
75313121143
oct1510165140
9510412210
10220260960
11103371357
1261921a00
133682c43a
142137805a
151450c790
hexd20ea60

220260960 has 72 divisors (see below), whose sum is σ = 751645440. Its totient is φ = 58735872.

The previous prime is 220260947. The next prime is 220260967. The reversal of 220260960 is 69062022.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220260967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75040 + ... + 77919.

It is an arithmetic number, because the mean of its divisors is an integer number (10439520).

Almost surely, 2220260960 is an apocalyptic number.

220260960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220260960 is an abundant number, since it is smaller than the sum of its proper divisors (531384480).

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

220260960 is a wasteful number, since it uses less digits than its factorization.

220260960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152980 (or 152969 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 220260960 is about 14841.1913268444. The cubic root of 220260960 is about 603.9196712025.

The spelling of 220260960 in words is "two hundred twenty million, two hundred sixty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 152959 305918 458877 611836 764795 917754 1223672 1376631 1529590 1835508 2294385 2447344 2753262 3059180 3671016 4588770 4894688 5506524 6118360 6883155 7342032 9177540 11013048 12236720 13766310 14684064 18355080 22026096 24473440 27532620 36710160 44052192 55065240 73420320 110130480 220260960