Base | Representation |
---|---|
bin | 1011110010010001001… |
… | …1010000101101101001 |
3 | 201100121122201021201210 |
4 | 2330210103100231221 |
5 | 11304130424220011 |
6 | 233003052103333 |
7 | 20425312533102 |
oct | 2744423205551 |
9 | 640548637653 |
10 | 202472491881 |
11 | 78960496a20 |
12 | 332a7764b49 |
13 | 1612963991a |
14 | 9b2a6113a9 |
15 | 54005696a6 |
hex | 2f244d0b69 |
202472491881 has 8 divisors (see below), whose sum is σ = 294505442784. Its totient is φ = 122710601120.
The previous prime is 202472491847. The next prime is 202472491889. The reversal of 202472491881 is 188194274202.
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 202472491881 - 235 = 168112753513 is a prime.
It is a super-2 number, since 2×2024724918812 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 202472491881.
It is not an unprimeable number, because it can be changed into a prime (202472491889) 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, 3067764996 + ... + 3067765061.
It is an arithmetic number, because the mean of its divisors is an integer number (36813180348).
Almost surely, 2202472491881 is an apocalyptic number.
It is an amenable number.
202472491881 is a deficient number, since it is larger than the sum of its proper divisors (92032950903).
202472491881 is a wasteful number, since it uses less digits than its factorization.
202472491881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6135530071.
The product of its (nonzero) digits is 516096, while the sum is 48.
The spelling of 202472491881 in words is "two hundred two billion, four hundred seventy-two million, four hundred ninety-one thousand, eight hundred eighty-one".
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