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65414131 = 193442849
BaseRepresentation
bin1111100110001…
…0001111110011
311120002101022121
43321202033303
5113221223011
610254015111
71423003516
oct371421763
9146071277
1065414131
1133a19672
1219aa7497
13107243b3
14898ad7d
155b21e71
hex3e623f3

65414131 has 4 divisors (see below), whose sum is σ = 68857000. Its totient is φ = 61971264.

The previous prime is 65414119. The next prime is 65414179. The reversal of 65414131 is 13141456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65414131 - 25 = 65414099 is a prime.

It is a super-2 number, since 2×654141312 = 8558017068970322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65414096 and 65414105.

It is not an unprimeable number, because it can be changed into a prime (65414101) 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, 1721406 + ... + 1721443.

It is an arithmetic number, because the mean of its divisors is an integer number (17214250).

Almost surely, 265414131 is an apocalyptic number.

65414131 is a deficient number, since it is larger than the sum of its proper divisors (3442869).

65414131 is a wasteful number, since it uses less digits than its factorization.

65414131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442868.

The product of its digits is 1440, while the sum is 25.

The square root of 65414131 is about 8087.9002837572. The cubic root of 65414131 is about 402.9246698968.

Adding to 65414131 its reverse (13141456), we get a palindrome (78555587).

The spelling of 65414131 in words is "sixty-five million, four hundred fourteen thousand, one hundred thirty-one".

Divisors: 1 19 3442849 65414131