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2228504553 = 321128922993
BaseRepresentation
bin1000010011010100…
…0100011111101001
312202022022202112200
42010311010133221
514030444121203
61005044330413
7106136655552
oct20465043751
95668282480
102228504553
11a43a29500
125223a3a09
13296901a62
14171d7b329
15d099c9a3
hex84d447e9

2228504553 has 36 divisors (see below), whose sum is σ = 3578096340. Its totient is φ = 1335375360.

The previous prime is 2228504549. The next prime is 2228504617. The reversal of 2228504553 is 3554058222.

It is a happy number.

2228504553 is a `hidden beast` number, since 2 + 22 + 85 + 0 + 4 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1130775129 + 1097729424 = 33627^2 + 33132^2 .

It is not a de Polignac number, because 2228504553 - 22 = 2228504549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228504503) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85425 + ... + 108417.

It is an arithmetic number, because the mean of its divisors is an integer number (99391565).

Almost surely, 22228504553 is an apocalyptic number.

It is an amenable number.

2228504553 is a deficient number, since it is larger than the sum of its proper divisors (1349591787).

2228504553 is a wasteful number, since it uses less digits than its factorization.

2228504553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23110 (or 23096 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 2228504553 is about 47207.0392314536. The cubic root of 2228504553 is about 1306.1844480493.

The spelling of 2228504553 in words is "two billion, two hundred twenty-eight million, five hundred four thousand, five hundred fifty-three".

Divisors: 1 3 9 11 33 89 99 121 267 363 801 979 1089 2937 8811 10769 22993 32307 68979 96921 206937 252923 758769 2046377 2276307 2782153 6139131 8346459 18417393 22510147 25039377 67530441 202591323 247611617 742834851 2228504553