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64424113 = 1361137593
BaseRepresentation
bin1111010111000…
…0100010110001
311111020002021021
43311300202301
5112443032423
610220455441
71411411255
oct365604261
9144202237
1064424113
1133402876
12196aa581
13104688a0
1487b0265
1559c895d
hex3d708b1

64424113 has 16 divisors (see below), whose sum is σ = 71151696. Its totient is φ = 57968640.

The previous prime is 64424111. The next prime is 64424147. The reversal of 64424113 is 31142446.

64424113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 9560464 + 54863649 = 3092^2 + 7407^2 .

It is a cyclic number.

It is not a de Polignac number, because 64424113 - 21 = 64424111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64424111) 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 15 ways as a sum of consecutive naturals, for example, 108345 + ... + 108937.

It is an arithmetic number, because the mean of its divisors is an integer number (4446981).

Almost surely, 264424113 is an apocalyptic number.

It is an amenable number.

64424113 is a deficient number, since it is larger than the sum of its proper divisors (6727583).

64424113 is a wasteful number, since it uses less digits than its factorization.

64424113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its digits is 2304, while the sum is 25.

The square root of 64424113 is about 8026.4632933815. The cubic root of 64424113 is about 400.8816241695.

Adding to 64424113 its reverse (31142446), we get a palindrome (95566559).

The spelling of 64424113 in words is "sixty-four million, four hundred twenty-four thousand, one hundred thirteen".

Divisors: 1 13 61 137 593 793 1781 7709 8357 36173 81241 108641 470249 1056133 4955701 64424113