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64242304 = 27771699
BaseRepresentation
bin1111010100010…
…0001010000000
311110212211212121
43311010022000
5112421223204
610212534024
71410023230
oct365041200
9143784777
1064242304
1133299215
1219621314
1310403bc9
148763cc0
15598eb54
hex3d44280

64242304 has 32 divisors (see below), whose sum is σ = 146268000. Its totient is φ = 27532032.

The previous prime is 64242293. The next prime is 64242313. The reversal of 64242304 is 40324246.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34954 + ... + 36745.

It is an arithmetic number, because the mean of its divisors is an integer number (4570875).

Almost surely, 264242304 is an apocalyptic number.

64242304 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64242304 is an abundant number, since it is smaller than the sum of its proper divisors (82025696).

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

64242304 is an equidigital number, since it uses as much as digits as its factorization.

64242304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71720 (or 71708 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 64242304 is about 8015.1296932738. The cubic root of 64242304 is about 400.5041642790.

It can be divided in two parts, 64242 and 304, that added together give a palindrome (64546).

The spelling of 64242304 in words is "sixty-four million, two hundred forty-two thousand, three hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 71699 143398 286796 501893 573592 1003786 1147184 2007572 2294368 4015144 4588736 8030288 9177472 16060576 32121152 64242304