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48781348225 = 5216322712
BaseRepresentation
bin101101011011100110…
…000100110110000001
311122220122201020122221
4231123212010312001
51244401011120400
634224305331041
73344563422061
oct553346046601
9148818636587
1048781348225
1119762887a25
129554936a81
1347a54479bc
14250a9473a1
1514078c2c1a
hexb5b984d81

48781348225 has 27 divisors (see below), whose sum is σ = 61087658499. Its totient is φ = 38642540400.

The previous prime is 48781348219. The next prime is 48781348261. The reversal of 48781348225 is 52284318784.

The square root of 48781348225 is 220865.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17561285361 + 31220062864 = 132519^2 + 176692^2 .

It is not a de Polignac number, because 48781348225 - 213 = 48781340033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 180004840 + ... + 180005110.

Almost surely, 248781348225 is an apocalyptic number.

48781348225 is the 220865-th square number.

48781348225 is the 110433-rd centered octagonal number.

It is an amenable number.

48781348225 is a deficient number, since it is larger than the sum of its proper divisors (12306310274).

48781348225 is an frugal number, since it uses more digits than its factorization.

48781348225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 439 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The spelling of 48781348225 in words is "forty-eight billion, seven hundred eighty-one million, three hundred forty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 163 271 815 1355 4075 6775 26569 44173 73441 132845 220865 367205 664225 1104325 1836025 7200199 11970883 36000995 59854415 180004975 299272075 1951253929 9756269645 48781348225