Base | Representation |
---|---|
bin | 1001101001000… |
… | …00101001011000 |
3 | 12122011211101000 |
4 | 10310200221120 |
5 | 131200432242 |
6 | 12005225000 |
7 | 2001263316 |
oct | 464405130 |
9 | 178154330 |
10 | 80874072 |
11 | 41718984 |
12 | 23102160 |
13 | 139a81a6 |
14 | aa530b6 |
15 | 7177a4c |
hex | 4d20a58 |
80874072 has 128 divisors (see below), whose sum is σ = 238694400. Its totient is φ = 25318656.
The previous prime is 80874047. The next prime is 80874077. The reversal of 80874072 is 27047808.
It is a super-2 number, since 2×808740722 = 13081231043722368, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80874077) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362553 + ... + 362775.
It is an arithmetic number, because the mean of its divisors is an integer number (1864800).
Almost surely, 280874072 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80874072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119347200).
80874072 is an abundant number, since it is smaller than the sum of its proper divisors (157820328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80874072 is a wasteful number, since it uses less digits than its factorization.
80874072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 334 (or 324 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 36.
The square root of 80874072 is about 8993.0012787723. The cubic root of 80874072 is about 432.4505330619.
The spelling of 80874072 in words is "eighty million, eight hundred seventy-four thousand, seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •