Base | Representation |
---|---|
bin | 100101010010010001… |
… | …1001110101100101000 |
3 | 21122200020001000211100 |
4 | 1022210203032230220 |
5 | 2302440422004432 |
6 | 100441140201400 |
7 | 5533132463625 |
oct | 1124443165450 |
9 | 248606030740 |
10 | 80070109992 |
11 | 30a59542824 |
12 | 13627399260 |
13 | 7720811712 |
14 | 3c381c934c |
15 | 213971c07c |
hex | 12a48ceb28 |
80070109992 has 48 divisors (see below), whose sum is σ = 222145740180. Its totient is φ = 26039059200.
The previous prime is 80070109991. The next prime is 80070110011. The reversal of 80070109992 is 29990107008.
It can be written as a sum of positive squares in 2 ways, for example, as 80069757156 + 352836 = 282966^2 + 594^2 .
It is a super-2 number, since 2×800701099922 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (80070109991) 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, 13559059 + ... + 13564962.
Almost surely, 280070109992 is an apocalyptic number.
80070109992 is a gapful number since it is divisible by the number (82) formed by its first and last digit.
It is an amenable number.
80070109992 is an abundant number, since it is smaller than the sum of its proper divisors (142075630188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80070109992 is a wasteful number, since it uses less digits than its factorization.
80070109992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27124074 (or 27124067 counting only the distinct ones).
The product of its (nonzero) digits is 81648, while the sum is 45.
The spelling of 80070109992 in words is "eighty billion, seventy million, one hundred nine thousand, nine hundred ninety-two".
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