Base | Representation |
---|---|
bin | 1000011011101… |
… | …10110100101010 |
3 | 11221010000210210 |
4 | 10031312310222 |
5 | 121102210130 |
6 | 11004121550 |
7 | 1516201554 |
oct | 415666452 |
9 | 157100723 |
10 | 70741290 |
11 | 36a27a84 |
12 | 1b8362b6 |
13 | 1186b069 |
14 | 95764d4 |
15 | 63255b0 |
hex | 4376d2a |
70741290 has 16 divisors (see below), whose sum is σ = 169779168. Its totient is φ = 18864336.
The previous prime is 70741289. The next prime is 70741291. The reversal of 70741290 is 9214707.
It is an interprime number because it is at equal distance from previous prime (70741289) and next prime (70741291).
It is a super-2 number, since 2×707412902 = 10008660221728200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2358043 = 70741290 / (7 + 0 + 7 + 4 + 1 + 2 + 9 + 0).
It is an alternating number because its digits alternate between odd and even.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (70741291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178992 + ... + 1179051.
It is an arithmetic number, because the mean of its divisors is an integer number (10611198).
Almost surely, 270741290 is an apocalyptic number.
70741290 is an abundant number, since it is smaller than the sum of its proper divisors (99037878).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70741290 is a wasteful number, since it uses less digits than its factorization.
70741290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2358053.
The product of its (nonzero) digits is 3528, while the sum is 30.
The square root of 70741290 is about 8410.7841489364. The cubic root of 70741290 is about 413.5782187136.
Adding to 70741290 its reverse (9214707), we get a palindrome (79955997).
The spelling of 70741290 in words is "seventy million, seven hundred forty-one thousand, two hundred ninety".
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