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250542020 = 22529487887
BaseRepresentation
bin11101110111011…
…11011111000100
3122110102212001002
432323233133010
51003114321040
640505552432
76131400131
oct1673573704
9573385032
10250542020
11119473a23
126baa5718
133cba2321
14253bb588
1516edea15
hexeeef7c4

250542020 has 48 divisors (see below), whose sum is σ = 546013440. Its totient is φ = 96453504.

The previous prime is 250541989. The next prime is 250542043. The reversal of 250542020 is 20245052.

250542020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 250541983 and 250542001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282017 + ... + 282903.

It is an arithmetic number, because the mean of its divisors is an integer number (11375280).

Almost surely, 2250542020 is an apocalyptic number.

250542020 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 250542020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273006720).

250542020 is an abundant number, since it is smaller than the sum of its proper divisors (295471420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250542020 is a wasteful number, since it uses less digits than its factorization.

250542020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 250542020 is about 15828.5191979541. The cubic root of 250542020 is about 630.4154645955.

Adding to 250542020 its reverse (20245052), we get a palindrome (270787072).

The spelling of 250542020 in words is "two hundred fifty million, five hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 487 580 887 974 1774 1948 2435 3548 4435 4870 8870 9740 14123 17740 25723 28246 51446 56492 70615 102892 128615 141230 257230 282460 431969 514460 863938 1727876 2159845 4319690 8639380 12527101 25054202 50108404 62635505 125271010 250542020