Base | Representation |
---|---|
bin | 110000011100… |
… | …100110100110 |
3 | 212220020012222 |
4 | 300130212212 |
5 | 11222400240 |
6 | 1132112342 |
7 | 212643305 |
oct | 60344646 |
9 | 25806188 |
10 | 12700070 |
11 | 7194829 |
12 | 43056b2 |
13 | 2828846 |
14 | 198843c |
15 | 11aceb5 |
hex | c1c9a6 |
12700070 has 16 divisors (see below), whose sum is σ = 23064480. Its totient is φ = 5034624.
The previous prime is 12700069. The next prime is 12700081. The reversal of 12700070 is 7000721.
It is a happy number.
It is a super-2 number, since 2×127000702 = 322583556009800, which contains 22 as substring.
It is a congruent number.
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 7 ways as a sum of consecutive naturals, for example, 4490 + ... + 6749.
It is an arithmetic number, because the mean of its divisors is an integer number (1441530).
Almost surely, 212700070 is an apocalyptic number.
12700070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12700070 is a deficient number, since it is larger than the sum of its proper divisors (10364410).
12700070 is a wasteful number, since it uses less digits than its factorization.
12700070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11359.
The product of its (nonzero) digits is 98, while the sum is 17.
The square root of 12700070 is about 3563.7157574644. The cubic root of 12700070 is about 233.3110840463.
Adding to 12700070 its reverse (7000721), we get a palindrome (19700791).
The spelling of 12700070 in words is "twelve million, seven hundred thousand, seventy".
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