Base | Representation |
---|---|
bin | 1000000000101101… |
… | …1101011110010010 |
3 | 12112212112002220000 |
4 | 2000023131132102 |
5 | 13401011103304 |
6 | 553220230430 |
7 | 104201563116 |
oct | 20013353622 |
9 | 5485462800 |
10 | 2150487954 |
11 | a0399247a |
12 | 50023b416 |
13 | 2836b73a4 |
14 | 16586d746 |
15 | c8bdb939 |
hex | 802dd792 |
2150487954 has 40 divisors (see below), whose sum is σ = 4872861180. Its totient is φ = 708770304.
The previous prime is 2150487943. The next prime is 2150487959. The reversal of 2150487954 is 4597840512.
2150487954 is a `hidden beast` number, since 21 + 504 + 8 + 79 + 54 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 1791574929 + 358913025 = 42327^2 + 18945^2 .
It is a super-2 number, since 2×21504879542 = 9249196880598212232, which contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (2150487959) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60159 + ... + 88994.
Almost surely, 22150487954 is an apocalyptic number.
2150487954 is an abundant number, since it is smaller than the sum of its proper divisors (2722373226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2150487954 is a wasteful number, since it uses less digits than its factorization.
2150487954 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149256 (or 149247 counting only the distinct ones).
The product of its (nonzero) digits is 403200, while the sum is 45.
The square root of 2150487954 is about 46373.3539222688. The cubic root of 2150487954 is about 1290.7605142364.
The spelling of 2150487954 in words is "two billion, one hundred fifty million, four hundred eighty-seven thousand, nine hundred fifty-four".
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