Base | Representation |
---|---|
bin | 1000010110101… |
… | …01101000000000 |
3 | 11212212111002111 |
4 | 10023111220000 |
5 | 120420043044 |
6 | 10542025104 |
7 | 1510451566 |
oct | 413255000 |
9 | 155774074 |
10 | 70081024 |
11 | 36616a02 |
12 | 1b578194 |
13 | 11699680 |
14 | 9443a36 |
15 | 6244b34 |
hex | 42d5a00 |
70081024 has 40 divisors (see below), whose sum is σ = 150810660. Its totient is φ = 32342016.
The previous prime is 70081001. The next prime is 70081043. The reversal of 70081024 is 42018007.
It can be written as a sum of positive squares in 2 ways, for example, as 70023424 + 57600 = 8368^2 + 240^2 .
It is a super-2 number, since 2×700810242 = 9822699849777152, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 70080986 and 70081004.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392 + ... + 11920.
Almost surely, 270081024 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 70081024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75405330).
70081024 is an abundant number, since it is smaller than the sum of its proper divisors (80729636).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70081024 is a wasteful number, since it uses less digits than its factorization.
70081024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10560 (or 10544 counting only the distinct ones).
The product of its (nonzero) digits is 448, while the sum is 22.
The square root of 70081024 is about 8371.4409751249. The cubic root of 70081024 is about 412.2874796313.
The spelling of 70081024 in words is "seventy million, eighty-one thousand, twenty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •