Base | Representation |
---|---|
bin | 10010100101100… |
… | …10011010110010 |
3 | 101212101120002200 |
4 | 21102302122302 |
5 | 304403420200 |
6 | 23245524030 |
7 | 3602204256 |
oct | 1122623262 |
9 | 355346080 |
10 | 155920050 |
11 | 80016050 |
12 | 44273616 |
13 | 263c26b0 |
14 | 169ca266 |
15 | da4d800 |
hex | 94b26b2 |
155920050 has 144 divisors (see below), whose sum is σ = 492343488. Its totient is φ = 34876800.
The previous prime is 155920003. The next prime is 155920057. The reversal of 155920050 is 50029551.
It is a super-2 number, since 2×1559200502 = 48622123984005000, which contains 22 as substring.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 155919996 and 155920023.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (155920057) 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 71 ways as a sum of consecutive naturals, for example, 63139 + ... + 65561.
It is an arithmetic number, because the mean of its divisors is an integer number (3419052).
Almost surely, 2155920050 is an apocalyptic number.
155920050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 155920050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246171744).
155920050 is an abundant number, since it is smaller than the sum of its proper divisors (336423438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
155920050 is a wasteful number, since it uses less digits than its factorization.
155920050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2465 (or 2457 counting only the distinct ones).
The product of its (nonzero) digits is 2250, while the sum is 27.
The square root of 155920050 is about 12486.7950251456. The cubic root of 155920050 is about 538.2292822784.
It can be divided in two parts, 1559 and 20050, that added together give a square (21609 = 1472).
The spelling of 155920050 in words is "one hundred fifty-five million, nine hundred twenty thousand, fifty".
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