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65014431 = 321671477
BaseRepresentation
bin1111100000000…
…0101010011111
311112100002000220
43320000222133
5113120430211
610241252423
71416420306
oct370005237
9145302026
1065014431
1133776339
1219934113
13106144a1
1488c543d
155a93806
hex3e00a9f

65014431 has 4 divisors (see below), whose sum is σ = 86685912. Its totient is φ = 43342952.

The previous prime is 65014429. The next prime is 65014441. The reversal of 65014431 is 13441056.

65014431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65014431 - 21 = 65014429 is a prime.

It is a super-2 number, since 2×650144312 = 8453752476507522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65014421) 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 3 ways as a sum of consecutive naturals, for example, 10835736 + ... + 10835741.

It is an arithmetic number, because the mean of its divisors is an integer number (21671478).

Almost surely, 265014431 is an apocalyptic number.

65014431 is a deficient number, since it is larger than the sum of its proper divisors (21671481).

65014431 is a wasteful number, since it uses less digits than its factorization.

65014431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21671480.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 65014431 is about 8063.1526712571. The cubic root of 65014431 is about 402.1023290896.

Adding to 65014431 its reverse (13441056), we get a palindrome (78455487).

The spelling of 65014431 in words is "sixty-five million, fourteen thousand, four hundred thirty-one".

Divisors: 1 3 21671477 65014431