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6978028164 = 223581502347
BaseRepresentation
bin1100111111110110…
…00100001010000100
3200000022101120002120
412133323010022010
5103242333400124
63112231205540
7334631155302
oct63773041204
920008346076
106978028164
112a60a07928
121428b168b0
138728b2163
144a2a7b272
152ac928d79
hex19fec4284

6978028164 has 12 divisors (see below), whose sum is σ = 16282065744. Its totient is φ = 2326009384.

The previous prime is 6978028153. The next prime is 6978028181. The reversal of 6978028164 is 4618208796.

It is a tau number, because it is divible by the number of its divisors (12).

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, 290751162 + ... + 290751185.

It is an arithmetic number, because the mean of its divisors is an integer number (1356838812).

Almost surely, 26978028164 is an apocalyptic number.

It is an amenable number.

6978028164 is an abundant number, since it is smaller than the sum of its proper divisors (9304037580).

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

6978028164 is a wasteful number, since it uses less digits than its factorization.

6978028164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581502354 (or 581502352 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 6978028164 is about 83534.5926188666. The cubic root of 6978028164 is about 1910.9276274023.

The spelling of 6978028164 in words is "six billion, nine hundred seventy-eight million, twenty-eight thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 581502347 1163004694 1744507041 2326009388 3489014082 6978028164