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220081412 = 2261901973
BaseRepresentation
bin11010001111000…
…10110100000100
3120100010021221102
431013202310010
5422320101122
633501035232
75311442525
oct1507426404
9510107842
10220081412
11103259471
1261855b18
13367987b5
142132c84c
15144c4492
hexd1e2d04

220081412 has 12 divisors (see below), whose sum is σ = 391456716. Its totient is φ = 108236640.

The previous prime is 220081403. The next prime is 220081417. The reversal of 220081412 is 214180022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6220036 + 213861376 = 2494^2 + 14624^2 .

It is not an unprimeable number, because it can be changed into a prime (220081417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450743 + ... + 451230.

It is an arithmetic number, because the mean of its divisors is an integer number (32621393).

Almost surely, 2220081412 is an apocalyptic number.

It is an amenable number.

220081412 is a deficient number, since it is larger than the sum of its proper divisors (171375304).

220081412 is a wasteful number, since it uses less digits than its factorization.

220081412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902038 (or 902036 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 220081412 is about 14835.1411183042. The cubic root of 220081412 is about 603.7555294714.

The spelling of 220081412 in words is "two hundred twenty million, eighty-one thousand, four hundred twelve".

Divisors: 1 2 4 61 122 244 901973 1803946 3607892 55020353 110040706 220081412