Base | Representation |
---|---|
bin | 1001011001100001101… |
… | …1010010001100100000 |
3 | 120102210012022201021202 |
4 | 2112120123102030200 |
5 | 10121143044013300 |
6 | 202102341340332 |
7 | 14444255345564 |
oct | 2263033221440 |
9 | 512705281252 |
10 | 161471079200 |
11 | 6253023a7a2 |
12 | 273644076a8 |
13 | 122c3c741a2 |
14 | 7b5b0496a4 |
15 | 4300bc2ad5 |
hex | 25986d2320 |
161471079200 has 54 divisors (see below), whose sum is σ = 394219020321. Its totient is φ = 64583885440.
The previous prime is 161471079191. The next prime is 161471079241. The reversal of 161471079200 is 2970174161.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 158241657616 + 3229421584 = 397796^2 + 56828^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=284140.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11358497 + ... + 11372703.
Almost surely, 2161471079200 is an apocalyptic number.
161471079200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
161471079200 is an abundant number, since it is smaller than the sum of its proper divisors (232747941121).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
161471079200 is an frugal number, since it uses more digits than its factorization.
161471079200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28434 (or 14214 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 38.
The spelling of 161471079200 in words is "one hundred sixty-one billion, four hundred seventy-one million, seventy-nine thousand, two hundred".
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