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65312052 = 22313418667
BaseRepresentation
bin1111100100100…
…1010100110100
311112220012021220
43321021110310
5113204441202
610251510340
71422100101
oct371112464
9145805256
1065312052
1133959a03
1219a583b0
13106b9ab0
148961aa8
155b01abc
hex3e49534

65312052 has 24 divisors (see below), whose sum is σ = 164117856. Its totient is φ = 20095968.

The previous prime is 65312047. The next prime is 65312053. The reversal of 65312052 is 25021356.

65312052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65312053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 209178 + ... + 209489.

It is an arithmetic number, because the mean of its divisors is an integer number (6838244).

Almost surely, 265312052 is an apocalyptic number.

It is an amenable number.

65312052 is an abundant number, since it is smaller than the sum of its proper divisors (98805804).

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

65312052 is a wasteful number, since it uses less digits than its factorization.

65312052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418687 (or 418685 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65312052 is about 8081.5872203423. The cubic root of 65312052 is about 402.7149722881.

The spelling of 65312052 in words is "sixty-five million, three hundred twelve thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 418667 837334 1256001 1674668 2512002 5024004 5442671 10885342 16328013 21770684 32656026 65312052