Base | Representation |
---|---|
bin | 110111110010111… |
… | …1001010110111010 |
3 | 11211110212212202220 |
4 | 1233211321112322 |
5 | 12313241031432 |
6 | 505435504510 |
7 | 64252324215 |
oct | 15745712672 |
9 | 4743785686 |
10 | 1872205242 |
11 | 8808a1566 |
12 | 442bb8136 |
13 | 23ab5156b |
14 | 13a91077c |
15 | ae56c72c |
hex | 6f9795ba |
1872205242 has 32 divisors (see below), whose sum is σ = 3944166720. Its totient is φ = 590820480.
The previous prime is 1872205219. The next prime is 1872205243. The reversal of 1872205242 is 2425022781.
It is not an unprimeable number, because it can be changed into a prime (1872205243) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193758 + ... + 203190.
It is an arithmetic number, because the mean of its divisors is an integer number (123255210).
Almost surely, 21872205242 is an apocalyptic number.
1872205242 is an abundant number, since it is smaller than the sum of its proper divisors (2071961478).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1872205242 is a wasteful number, since it uses less digits than its factorization.
1872205242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11198.
The product of its (nonzero) digits is 17920, while the sum is 33.
The square root of 1872205242 is about 43268.9870692624. The cubic root of 1872205242 is about 1232.4930688758.
The spelling of 1872205242 in words is "one billion, eight hundred seventy-two million, two hundred five thousand, two hundred forty-two".
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