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65345025 = 3521753967
BaseRepresentation
bin1111100101000…
…1011000000001
311112221212112010
43321101120001
5113212020100
610252323133
71422265164
oct371213001
9145855463
1065345025
1133981759
1219a734a9
13106cbac5
14896dadb
155b0b750
hex3e51601

65345025 has 48 divisors (see below), whose sum is σ = 116671104. Its totient is φ = 32148480.

The previous prime is 65345023. The next prime is 65345039. The reversal of 65345025 is 52054356.

It is not a de Polignac number, because 65345025 - 21 = 65345023 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65344983 and 65345001.

It is not an unprimeable number, because it can be changed into a prime (65345023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67092 + ... + 68058.

It is an arithmetic number, because the mean of its divisors is an integer number (2430648).

Almost surely, 265345025 is an apocalyptic number.

It is an amenable number.

65345025 is a deficient number, since it is larger than the sum of its proper divisors (51326079).

65345025 is a wasteful number, since it uses less digits than its factorization.

65345025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 65345025 is about 8083.6269706116. The cubic root of 65345025 is about 402.7827315373.

The spelling of 65345025 in words is "sixty-five million, three hundred forty-five thousand, twenty-five".

Divisors: 1 3 5 15 17 25 51 53 75 85 159 255 265 425 795 901 967 1275 1325 2703 2901 3975 4505 4835 13515 14505 16439 22525 24175 49317 51251 67575 72525 82195 153753 246585 256255 410975 768765 871267 1232925 1281275 2613801 3843825 4356335 13069005 21781675 65345025