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64433634214 = 21941211196003
BaseRepresentation
bin111100000000100010…
…110011101110100110
320011022111020202111211
4330000202303232212
52023430002243324
645333404222034
74440503565655
oct740042635646
9204274222454
1064433634214
112536511a074
12105a283a91a
1360cb1683a1
14319364519c
151a21ad2294
hexf008b3ba6

64433634214 has 32 divisors (see below), whose sum is σ = 104713176960. Its totient is φ = 29635502400.

The previous prime is 64433634103. The next prime is 64433634229. The reversal of 64433634214 is 41243633446.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230737 + ... + 426739.

It is an arithmetic number, because the mean of its divisors is an integer number (3272286780).

Almost surely, 264433634214 is an apocalyptic number.

64433634214 is a deficient number, since it is larger than the sum of its proper divisors (40279542746).

64433634214 is a wasteful number, since it uses less digits than its factorization.

64433634214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196276.

The product of its digits is 497664, while the sum is 40.

The spelling of 64433634214 in words is "sixty-four billion, four hundred thirty-three million, six hundred thirty-four thousand, two hundred fourteen".

Divisors: 1 2 19 38 41 82 211 422 779 1558 4009 8018 8651 17302 164369 196003 328738 392006 3724057 7448114 8036123 16072246 41356633 82713266 152686337 305372674 785776027 1571552054 1695621953 3391243906 32216817107 64433634214