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64006208 = 267142871
BaseRepresentation
bin1111010000101…
…0100001000000
311110102212000022
43310022201000
5112341144313
610203513012
71405021010
oct364124100
9143385008
1064006208
11331478a2
1219528768
13103505c6
148701c40
155944c08
hex3d0a840

64006208 has 28 divisors (see below), whose sum is σ = 145157952. Its totient is φ = 27431040.

The previous prime is 64006199. The next prime is 64006211. The reversal of 64006208 is 80260046.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-3 number, since 3×640062083 (a number of 24 digits) contains 333 as substring.

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, 70988 + ... + 71883.

Almost surely, 264006208 is an apocalyptic number.

It is an amenable number.

64006208 is an abundant number, since it is smaller than the sum of its proper divisors (81151744).

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

64006208 is a wasteful number, since it uses less digits than its factorization.

64006208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142890 (or 142880 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 64006208 is about 8000.3879905915. The cubic root of 64006208 is about 400.0129329152.

The spelling of 64006208 in words is "sixty-four million, six thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 142871 285742 571484 1000097 1142968 2000194 2285936 4000388 4571872 8000776 9143744 16001552 32003104 64006208