Base | Representation |
---|---|
bin | 10110101110100110… |
… | …01101000011110001 |
3 | 1011111101100101122001 |
4 | 23113103031003301 |
5 | 144442212222012 |
6 | 5334444414001 |
7 | 611243612566 |
oct | 132723150361 |
9 | 34441311561 |
10 | 12202070257 |
11 | 51a1828a93 |
12 | 2446547301 |
13 | 11c5c95220 |
14 | 83a7bc86d |
15 | 4b6388357 |
hex | 2d74cd0f1 |
12202070257 has 8 divisors (see below), whose sum is σ = 13288340520. Its totient is φ = 11136892800.
The previous prime is 12202070233. The next prime is 12202070327. The reversal of 12202070257 is 75207020221.
It can be written as a sum of positive squares in 4 ways, for example, as 273935601 + 11928134656 = 16551^2 + 109216^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12202070257 - 211 = 12202068209 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12202070207) 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, 5271994 + ... + 5274307.
It is an arithmetic number, because the mean of its divisors is an integer number (1661042565).
Almost surely, 212202070257 is an apocalyptic number.
It is an amenable number.
12202070257 is a deficient number, since it is larger than the sum of its proper divisors (1086270263).
12202070257 is a wasteful number, since it uses less digits than its factorization.
12202070257 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10546403.
The product of its (nonzero) digits is 3920, while the sum is 28.
Adding to 12202070257 its reverse (75207020221), we get a palindrome (87409090478).
The spelling of 12202070257 in words is "twelve billion, two hundred two million, seventy thousand, two hundred fifty-seven".
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