Base | Representation |
---|---|
bin | 100101010000001110… |
… | …0100011001011010000 |
3 | 21122111102110120200021 |
4 | 1022200130203023100 |
5 | 2302320310000000 |
6 | 100430240233224 |
7 | 5531335255630 |
oct | 1124034431320 |
9 | 248442416607 |
10 | 80001250000 |
11 | 30a23690241 |
12 | 1360830b814 |
13 | 770c481a69 |
14 | 3c2cdc26c0 |
15 | 213366911a |
hex | 12a07232d0 |
80001250000 has 320 divisors, whose sum is σ = 227849416704. Its totient is φ = 26640000000.
The previous prime is 80001249971. The next prime is 80001250013. The reversal of 80001250000 is 5210008.
It is a happy number.
It is a sliding number, since 80001250000 = 1250000 + 80000000000 and 1/1250000 + 1/80000000000 = 0.00000080001250000.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 358749889 + ... + 358750111.
Almost surely, 280001250000 is an apocalyptic number.
80001250000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80001250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113924708352).
80001250000 is an abundant number, since it is smaller than the sum of its proper divisors (147848166704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80001250000 is an frugal number, since it uses more digits than its factorization.
80001250000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 314 (or 278 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 16.
Adding to 80001250000 its reverse (5210008), we get a palindrome (80006460008).
It can be divided in two parts, 8000 and 1250000, that multiplied together give a 10-th power (10000000000 = 1010).
The spelling of 80001250000 in words is "eighty billion, one million, two hundred fifty thousand".
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