Base | Representation |
---|---|
bin | 10001101010101110010… |
… | …100101010110011010100 |
3 | 11022001211002120021001011 |
4 | 101222232110222303110 |
5 | 124342441442300002 |
6 | 2325430300542004 |
7 | 153500443614220 |
oct | 21525624526324 |
9 | 4261732507034 |
10 | 1214105431252 |
11 | 42899895639a |
12 | 177375551904 |
13 | 8a6499bc52c |
14 | 42a97a07780 |
15 | 218ad1e78d7 |
hex | 11aae52acd4 |
1214105431252 has 48 divisors (see below), whose sum is σ = 2439263530368. Its totient is φ = 517963144320.
The previous prime is 1214105431229. The next prime is 1214105431267. The reversal of 1214105431252 is 2521345014121.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77516302 + ... + 77531962.
It is an arithmetic number, because the mean of its divisors is an integer number (50817990216).
Almost surely, 21214105431252 is an apocalyptic number.
It is an amenable number.
1214105431252 is an abundant number, since it is smaller than the sum of its proper divisors (1225158099116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1214105431252 is a wasteful number, since it uses less digits than its factorization.
1214105431252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28096 (or 28094 counting only the distinct ones).
The product of its (nonzero) digits is 9600, while the sum is 31.
The spelling of 1214105431252 in words is "one trillion, two hundred fourteen billion, one hundred five million, four hundred thirty-one thousand, two hundred fifty-two".
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