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64288434 = 23714910273
BaseRepresentation
bin1111010100111…
…1011010110010
311110222012011010
43311033122302
5112424212214
610213531350
71410304560
oct365173262
9143865133
1064288434
113331a941
1219643b56
131041bbc2
148776a30
15599d659
hex3d4f6b2

64288434 has 32 divisors (see below), whose sum is σ = 147945600. Its totient is φ = 18243072.

The previous prime is 64288429. The next prime is 64288439. The reversal of 64288434 is 43488246.

It is an interprime number because it is at equal distance from previous prime (64288429) and next prime (64288439).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64288392 and 64288401.

It is not an unprimeable number, because it can be changed into a prime (64288439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1122 + ... + 11394.

It is an arithmetic number, because the mean of its divisors is an integer number (4623300).

Almost surely, 264288434 is an apocalyptic number.

64288434 is an abundant number, since it is smaller than the sum of its proper divisors (83657166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64288434 is a wasteful number, since it uses less digits than its factorization.

64288434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434.

The product of its digits is 147456, while the sum is 39.

The square root of 64288434 is about 8018.0068595630. The cubic root of 64288434 is about 400.6000037055.

The spelling of 64288434 in words is "sixty-four million, two hundred eighty-eight thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 149 298 447 894 1043 2086 3129 6258 10273 20546 30819 61638 71911 143822 215733 431466 1530677 3061354 4592031 9184062 10714739 21429478 32144217 64288434