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250485040 = 24513297191
BaseRepresentation
bin11101110111000…
…01100100110000
3122110022221212201
432323201210300
51003111010130
640504432544
76131042041
oct1673414460
9573287781
10250485040
11119435133
126ba78754
133cb82400
14253a48c8
1516eccbca
hexeee1930

250485040 has 120 divisors (see below), whose sum is σ = 640459008. Its totient is φ = 91054080.

The previous prime is 250484989. The next prime is 250485077. The reversal of 250485040 is 40584052.

250485040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1311345 + ... + 1311535.

Almost surely, 2250485040 is an apocalyptic number.

250485040 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 250485040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320229504).

250485040 is an abundant number, since it is smaller than the sum of its proper divisors (389973968).

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

250485040 is a wasteful number, since it uses less digits than its factorization.

250485040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 250485040 is about 15826.7191799185. The cubic root of 250485040 is about 630.3676698228.

The spelling of 250485040 in words is "two hundred fifty million, four hundred eighty-five thousand, forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 97 104 130 169 191 194 208 260 338 382 388 485 520 676 764 776 845 955 970 1040 1261 1352 1528 1552 1690 1910 1940 2483 2522 2704 3056 3380 3820 3880 4966 5044 6305 6760 7640 7760 9932 10088 12415 12610 13520 15280 16393 18527 19864 20176 24830 25220 32279 32786 37054 39728 49660 50440 64558 65572 74108 81965 92635 99320 100880 129116 131144 148216 161395 163930 185270 198640 240851 258232 262288 296432 322790 327860 370540 481702 516464 645580 655720 741080 963404 1204255 1291160 1311440 1482160 1926808 2408510 2582320 3131063 3853616 4817020 6262126 9634040 12524252 15655315 19268080 25048504 31310630 50097008 62621260 125242520 250485040