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64405482 = 2315768371
BaseRepresentation
bin1111010110101…
…1111111101010
311111012010201020
43311223333222
5112441433412
610220233310
71411303041
oct365537752
9144163636
1064405482
113339a879
121969b836
131046026b
1487a7558
1559c318c
hex3d6bfea

64405482 has 16 divisors (see below), whose sum is σ = 129633312. Its totient is φ = 21331440.

The previous prime is 64405457. The next prime is 64405483. The reversal of 64405482 is 28450446.

It is a super-2 number, since 2×644054822 = 8296132223304648, which contains 22 as substring.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (64405483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33244 + ... + 35127.

It is an arithmetic number, because the mean of its divisors is an integer number (8102082).

Almost surely, 264405482 is an apocalyptic number.

64405482 is an abundant number, since it is smaller than the sum of its proper divisors (65227830).

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

64405482 is a wasteful number, since it uses less digits than its factorization.

64405482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68533.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 64405482 is about 8025.3026111169. The cubic root of 64405482 is about 400.8429763957.

The spelling of 64405482 in words is "sixty-four million, four hundred five thousand, four hundred eighty-two".

Divisors: 1 2 3 6 157 314 471 942 68371 136742 205113 410226 10734247 21468494 32202741 64405482