Base | Representation |
---|---|
bin | 100101010011110001… |
… | …0111010100111001011 |
3 | 21122210201120222000110 |
4 | 1022213202322213023 |
5 | 2303041302444441 |
6 | 100450133205403 |
7 | 5534312550363 |
oct | 1124742724713 |
9 | 248721528013 |
10 | 80120359371 |
11 | 30a84943938 |
12 | 13640190863 |
13 | 772b056490 |
14 | 3c40b499a3 |
15 | 213dd45b16 |
hex | 12a78ba9cb |
80120359371 has 16 divisors (see below), whose sum is σ = 115056712736. Its totient is φ = 49299653376.
The previous prime is 80120359349. The next prime is 80120359381. The reversal of 80120359371 is 17395302108.
It is not a de Polignac number, because 80120359371 - 27 = 80120359243 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80120359381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285951 + ... + 491943.
It is an arithmetic number, because the mean of its divisors is an integer number (7191044546).
Almost surely, 280120359371 is an apocalyptic number.
80120359371 is a deficient number, since it is larger than the sum of its proper divisors (34936353365).
80120359371 is a wasteful number, since it uses less digits than its factorization.
80120359371 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 215982.
The product of its (nonzero) digits is 45360, while the sum is 39.
The spelling of 80120359371 in words is "eighty billion, one hundred twenty million, three hundred fifty-nine thousand, three hundred seventy-one".
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