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214520025 = 35217311541
BaseRepresentation
bin11001100100101…
…01000011011001
3112221122202011010
430302111003121
5414404120100
633141524133
75213250546
oct1462250331
9487582133
10214520025
11100100085
125ba13649
133559c335
14206c1bcd
1513c76750
hexcc950d9

214520025 has 48 divisors (see below), whose sum is σ = 377440128. Its totient is φ = 107136000.

The previous prime is 214519973. The next prime is 214520041. The reversal of 214520025 is 520025412.

It is a happy number.

It is not a de Polignac number, because 214520025 - 26 = 214519961 is a prime.

It is a super-2 number, since 2×2145200252 = 92037682252001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214519983 and 214520010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 396255 + ... + 396795.

It is an arithmetic number, because the mean of its divisors is an integer number (7863336).

Almost surely, 2214520025 is an apocalyptic number.

214520025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214520025 is a deficient number, since it is larger than the sum of its proper divisors (162920103).

214520025 is a wasteful number, since it uses less digits than its factorization.

214520025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 214520025 is about 14646.5021421498. The cubic root of 214520025 is about 598.6265110571.

Adding to 214520025 its reverse (520025412), we get a palindrome (734545437).

The spelling of 214520025 in words is "two hundred fourteen million, five hundred twenty thousand, twenty-five".

Divisors: 1 3 5 15 17 25 51 75 85 255 311 425 541 933 1275 1555 1623 2705 4665 5287 7775 8115 9197 13525 15861 23325 26435 27591 40575 45985 79305 132175 137955 168251 229925 396525 504753 689775 841255 2523765 2860267 4206275 8580801 12618825 14301335 42904005 71506675 214520025