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65134213 = 103632371
BaseRepresentation
bin1111100001110…
…1111010000101
311112120011100021
43320131322011
5113133243323
610244015141
71420426444
oct370357205
9145504307
1065134213
1133848331
12199914b1
1310656b71
148916d5b
155ab905d
hex3e1de85

65134213 has 4 divisors (see below), whose sum is σ = 65766688. Its totient is φ = 64501740.

The previous prime is 65134159. The next prime is 65134231. The reversal of 65134213 is 31243156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65134213 - 213 = 65126021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65134243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316083 + ... + 316288.

It is an arithmetic number, because the mean of its divisors is an integer number (16441672).

Almost surely, 265134213 is an apocalyptic number.

It is an amenable number.

65134213 is a deficient number, since it is larger than the sum of its proper divisors (632475).

65134213 is a wasteful number, since it uses less digits than its factorization.

65134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632474.

The product of its digits is 2160, while the sum is 25.

The square root of 65134213 is about 8070.5769930037. The cubic root of 65134213 is about 402.3491208215.

Adding to 65134213 its reverse (31243156), we get a palindrome (96377369).

The spelling of 65134213 in words is "sixty-five million, one hundred thirty-four thousand, two hundred thirteen".

Divisors: 1 103 632371 65134213