Base | Representation |
---|---|
bin | 11101010001010… |
… | …10110001110000 |
3 | 122010000211022011 |
4 | 32220222301300 |
5 | 1000324321000 |
6 | 40210452304 |
7 | 6041033614 |
oct | 1650526160 |
9 | 563024264 |
10 | 245542000 |
11 | 116669380 |
12 | 6a294094 |
13 | 3bb41532 |
14 | 24879344 |
15 | 168532ba |
hex | ea2ac70 |
245542000 has 80 divisors (see below), whose sum is σ = 647753184. Its totient is φ = 89280000.
The previous prime is 245541983. The next prime is 245542007. The reversal of 245542000 is 245542.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (245542007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16420 + ... + 27580.
Almost surely, 2245542000 is an apocalyptic number.
245542000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 245542000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323876592).
245542000 is an abundant number, since it is smaller than the sum of its proper divisors (402211184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
245542000 is a wasteful number, since it uses less digits than its factorization.
245542000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11195 (or 11179 counting only the distinct ones).
The product of its (nonzero) digits is 1600, while the sum is 22.
The square root of 245542000 is about 15669.7798325312. The cubic root of 245542000 is about 626.1935592153.
Adding to 245542000 its reverse (245542), we get a palindrome (245787542).
245542000 divided by its reverse (245542) gives a cube (1000 = 103).
It can be divided in two parts, 245 and 542000, that added together give a palindrome (542245).
The spelling of 245542000 in words is "two hundred forty-five million, five hundred forty-two thousand".
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