Base | Representation |
---|---|
bin | 1000010111011… |
… | …10000010000000 |
3 | 11220001120020000 |
4 | 10023232002000 |
5 | 120431242432 |
6 | 10544120000 |
7 | 1511346210 |
oct | 413560200 |
9 | 156046200 |
10 | 70180992 |
11 | 36685022 |
12 | 1b606000 |
13 | 1170301b |
14 | 946c240 |
15 | 626457c |
hex | 42ee080 |
70180992 has 160 divisors (see below), whose sum is σ = 238941120. Its totient is φ = 20030976.
The previous prime is 70180991. The next prime is 70181009. The reversal of 70180992 is 29908107.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (70180991) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72093 + ... + 73059.
It is an arithmetic number, because the mean of its divisors is an integer number (1493382).
Almost surely, 270180992 is an apocalyptic number.
70180992 is a gapful number since it is divisible by the number (72) 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 70180992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119470560).
70180992 is an abundant number, since it is smaller than the sum of its proper divisors (168760128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70180992 is an equidigital number, since it uses as much as digits as its factorization.
70180992 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1000 (or 979 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 36.
The square root of 70180992 is about 8377.4096235053. The cubic root of 70180992 is about 412.4834241273.
The spelling of 70180992 in words is "seventy million, one hundred eighty thousand, nine hundred ninety-two".
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