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80078044004 = 22721392939291
BaseRepresentation
bin100101010010100000…
…1011111101101100100
321122200202222010020122
41022211001133231210
52302444434402004
6100442022221112
75533260100100
oct1124501375544
9248622863218
1080078044004
1130a62a71762
1213629b84798
13772235baba
143c39292900
15213a287cbe
hex12a505fb64

80078044004 has 36 divisors (see below), whose sum is σ = 164188851120. Its totient is φ = 34072249680.

The previous prime is 80078044003. The next prime is 80078044051. The reversal of 80078044004 is 40044087008.

It is not an unprimeable number, because it can be changed into a prime (80078044003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1442402 + ... + 1496889.

It is an arithmetic number, because the mean of its divisors is an integer number (4560801420).

Almost surely, 280078044004 is an apocalyptic number.

It is an amenable number.

80078044004 is an abundant number, since it is smaller than the sum of its proper divisors (84110807116).

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

80078044004 is a wasteful number, since it uses less digits than its factorization.

80078044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939448 (or 2939439 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The spelling of 80078044004 in words is "eighty billion, seventy-eight million, forty-four thousand, four".

Divisors: 1 2 4 7 14 28 49 98 139 196 278 556 973 1946 3892 6811 13622 27244 2939291 5878582 11757164 20575037 41150074 82300148 144025259 288050518 408561449 576101036 817122898 1634245796 2859930143 5719860286 11439720572 20019511001 40039022002 80078044004