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250980 = 22354789
BaseRepresentation
bin111101010001100100
3110202021120
4331101210
531012410
65213540
72063502
oct752144
9422246
10250980
11161624
121012b0
138a312
1467672
154e570
hex3d464

250980 has 48 divisors (see below), whose sum is σ = 725760. Its totient is φ = 64768.

The previous prime is 250979. The next prime is 250993. The reversal of 250980 is 89052.

250980 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 250980.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250980.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2250980 is an apocalyptic number.

250980 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 250980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362880).

250980 is an abundant number, since it is smaller than the sum of its proper divisors (474780).

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

250980 is a wasteful number, since it uses less digits than its factorization.

250980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 250980 is about 500.9790414778. The cubic root of 250980 is about 63.0782600122.

The spelling of 250980 in words is "two hundred fifty thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 89 94 141 178 188 235 267 282 356 445 470 534 564 705 890 940 1068 1335 1410 1780 2670 2820 4183 5340 8366 12549 16732 20915 25098 41830 50196 62745 83660 125490 250980