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65436141 = 321812047
BaseRepresentation
bin1111100110011…
…1100111101101
311120010111111210
43321213213231
5113222424031
610254305033
71423124631
oct371474755
9146114453
1065436141
1133a34161
1219ab8179
1310731414
148994dc1
155b28746
hex3e679ed

65436141 has 4 divisors (see below), whose sum is σ = 87248192. Its totient is φ = 43624092.

The previous prime is 65436139. The next prime is 65436149. The reversal of 65436141 is 14163456.

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 not a de Polignac number, because 65436141 - 21 = 65436139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65436099 and 65436108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65436149) 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, 10906021 + ... + 10906026.

It is an arithmetic number, because the mean of its divisors is an integer number (21812048).

Almost surely, 265436141 is an apocalyptic number.

It is an amenable number.

65436141 is a deficient number, since it is larger than the sum of its proper divisors (21812051).

65436141 is a wasteful number, since it uses less digits than its factorization.

65436141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21812050.

The product of its digits is 8640, while the sum is 30.

The square root of 65436141 is about 8089.2608438596. The cubic root of 65436141 is about 402.9698557375.

Adding to 65436141 its reverse (14163456), we get a palindrome (79599597).

The spelling of 65436141 in words is "sixty-five million, four hundred thirty-six thousand, one hundred forty-one".

Divisors: 1 3 21812047 65436141