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47954430225 = 325213211232
BaseRepresentation
bin101100101010010011…
…101000100100010001
311120210000201110102100
4230222103220210101
51241202313231400
634010245511013
73315232634322
oct545223504421
9146700643370
1047954430225
1119379031219
129363a12469
1346a302b900
14246cbb2449
1513a9ed0100
hexb2a4e8911

47954430225 has 81 divisors (see below), whose sum is σ = 93089896497. Its totient is φ = 23587312320.

The previous prime is 47954430217. The next prime is 47954430233. The reversal of 47954430225 is 52203445974.

The square root of 47954430225 is 218985.

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

47954430225 is a `hidden beast` number, since 4 + 79 + 544 + 30 + 2 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (47954430217) and next prime (47954430233).

It can be written as a sum of positive squares in 4 ways, for example, as 12360325329 + 35594104896 = 111177^2 + 188664^2 .

It is not a de Polignac number, because 47954430225 - 23 = 47954430217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 42701514 + ... + 42702636.

Almost surely, 247954430225 is an apocalyptic number.

47954430225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47954430225 is the 218985-th square number.

47954430225 is the 109493-rd centered octagonal number.

It is an amenable number.

47954430225 is a deficient number, since it is larger than the sum of its proper divisors (45135466272).

47954430225 is a wasteful number, since it uses less digits than its factorization.

47954430225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 47954430225 in words is "forty-seven billion, nine hundred fifty-four million, four hundred thirty thousand, two hundred twenty-five".

Divisors: 1 3 5 9 13 15 25 39 45 65 75 117 169 195 225 325 507 585 845 975 1123 1521 2535 2925 3369 4225 5615 7605 10107 12675 14599 16845 28075 38025 43797 50535 72995 84225 131391 189787 218985 252675 364975 569361 656955 948935 1094925 1261129 1708083 2846805 3284775 3783387 4744675 6305645 8540415 11350161 14234025 16394677 18916935 31528225 42702075 49184031 56750805 81973385 94584675 147552093 213130801 245920155 283754025 409866925 639392403 737760465 1065654005 1229600775 1918177209 3196962015 3688802325 5328270025 9590886045 15984810075 47954430225