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48020148225 = 32527220872
BaseRepresentation
bin101100101110001110…
…010101000000000001
311120221121101021120100
4230232032111000001
51241321124220400
634020554233013
73316661345100
oct545616250001
9146847337510
1048020148225
1119402138115
129381a25769
1346b382b3ba
1424777dc037
1513b0b62100
hexb2e395001

48020148225 has 81 divisors (see below), whose sum is σ = 100099738947. Its totient is φ = 21941549280.

The previous prime is 48020148223. The next prime is 48020148229. The reversal of 48020148225 is 52284102084.

The square root of 48020148225 is 219135.

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., 17287253361 + 30732894864 = 131481^2 + 175308^2 .

It is not a de Polignac number, because 48020148225 - 21 = 48020148223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48020148225.

It is not an unprimeable number, because it can be changed into a prime (48020148223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 23008132 + ... + 23010218.

Almost surely, 248020148225 is an apocalyptic number.

48020148225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

48020148225 is the 219135-th square number.

48020148225 is the 109568-th centered octagonal number.

It is an amenable number.

48020148225 is an abundant number, since it is smaller than the sum of its proper divisors (52079590722).

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

48020148225 is an equidigital number, since it uses as much as digits as its factorization.

48020148225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

Multiplying 48020148225 by its sum of digits (36), we get a square (1728725336100 = 13148102).

The spelling of 48020148225 in words is "forty-eight billion, twenty million, one hundred forty-eight thousand, two hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 49 63 75 105 147 175 225 245 315 441 525 735 1225 1575 2087 2205 3675 6261 10435 11025 14609 18783 31305 43827 52175 73045 93915 102263 131481 156525 219135 306789 365225 469575 511315 657405 920367 1095675 1533945 2556575 3287025 4355569 4601835 7669725 13066707 21777845 23009175 30488983 39200121 65333535 91466949 108889225 152444915 196000605 213422881 274400847 326667675 457334745 640268643 762224575 980003025 1067114405 1372004235 1920805929 2286673725 3201343215 5335572025 6860021175 9604029645 16006716075 48020148225