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6464015412 = 2231393875309
BaseRepresentation
bin1100000010100100…
…10000110000110100
3121200111012000011020
412001102100300310
5101214241443122
62545230141140
7316120136661
oct60122206064
917614160136
106464015412
11281784a4a8
1213049517b0
137c0261bba
144546b8a68
1527c743c5c
hex181490c34

6464015412 has 24 divisors (see below), whose sum is σ = 15191215200. Its totient is φ = 2139170016.

The previous prime is 6464015401. The next prime is 6464015447. The reversal of 6464015412 is 2145104646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935987 + ... + 1939322.

It is an arithmetic number, because the mean of its divisors is an integer number (632967300).

Almost surely, 26464015412 is an apocalyptic number.

It is an amenable number.

6464015412 is an abundant number, since it is smaller than the sum of its proper divisors (8727199788).

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

6464015412 is a wasteful number, since it uses less digits than its factorization.

6464015412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875455 (or 3875453 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 6464015412 is about 80399.1008158673. The cubic root of 6464015412 is about 1862.8052836037.

The spelling of 6464015412 in words is "six billion, four hundred sixty-four million, fifteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 3875309 7750618 11625927 15501236 23251854 46503708 538667951 1077335902 1616003853 2154671804 3232007706 6464015412