Base | Representation |
---|---|
bin | 1000010110010… |
… | …11101001000010 |
3 | 11212210101222220 |
4 | 10023023221002 |
5 | 120412241010 |
6 | 10541111510 |
7 | 1510221426 |
oct | 413135102 |
9 | 155711886 |
10 | 70040130 |
11 | 36599206 |
12 | 1b558596 |
13 | 11683b84 |
14 | 9432b86 |
15 | 6237970 |
hex | 42cba42 |
70040130 has 32 divisors (see below), whose sum is σ = 169646400. Its totient is φ = 18505152.
The previous prime is 70040123. The next prime is 70040197. The reversal of 70040130 is 3104007.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7440 + ... + 13979.
It is an arithmetic number, because the mean of its divisors is an integer number (5301450).
Almost surely, 270040130 is an apocalyptic number.
70040130 is an abundant number, since it is smaller than the sum of its proper divisors (99606270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70040130 is a wasteful number, since it uses less digits than its factorization.
70040130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21538.
The product of its (nonzero) digits is 84, while the sum is 15.
The square root of 70040130 is about 8368.9981479267. The cubic root of 70040130 is about 412.2072707354.
Adding to 70040130 its reverse (3104007), we get a palindrome (73144137).
The spelling of 70040130 in words is "seventy million, forty thousand, one hundred thirty".
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