Base | Representation |
---|---|
bin | 10110101110100111… |
… | …00001100110111110 |
3 | 1011111101111200002120 |
4 | 23113103201212332 |
5 | 144442222420210 |
6 | 5334450303410 |
7 | 611244413154 |
oct | 132723414676 |
9 | 34441450076 |
10 | 12202154430 |
11 | 51a1886254 |
12 | 2446587b66 |
13 | 11c5cc462b |
14 | 83a8013d4 |
15 | 4b63a3270 |
hex | 2d74e19be |
12202154430 has 64 divisors (see below), whose sum is σ = 31444651008. Its totient is φ = 3019358720.
The previous prime is 12202154389. The next prime is 12202154449. The reversal of 12202154430 is 3445120221.
It is a self number, because there is not a number n which added to its sum of digits gives 12202154430.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132282 + ... + 204701.
It is an arithmetic number, because the mean of its divisors is an integer number (491322672).
Almost surely, 212202154430 is an apocalyptic number.
12202154430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12202154430 is an abundant number, since it is smaller than the sum of its proper divisors (19242496578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12202154430 is a wasteful number, since it uses less digits than its factorization.
12202154430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 337081.
The product of its (nonzero) digits is 1920, while the sum is 24.
Adding to 12202154430 its reverse (3445120221), we get a palindrome (15647274651).
The spelling of 12202154430 in words is "twelve billion, two hundred two million, one hundred fifty-four thousand, four hundred thirty".
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