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200940240 = 24353492399
BaseRepresentation
bin10111111101000…
…01101011010000
3112000002211012010
423332201223100
5402420041430
631534502520
74656651414
oct1376415320
9460084163
10200940240
11a3475416
1257364a40
1332826267
141c988d44
1512992cb0
hexbfa1ad0

200940240 has 80 divisors (see below), whose sum is σ = 624960000. Its totient is φ = 53408256.

The previous prime is 200940191. The next prime is 200940251. The reversal of 200940240 is 42049002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2009402403 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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, 82561 + ... + 84959.

It is an arithmetic number, because the mean of its divisors is an integer number (7812000).

Almost surely, 2200940240 is an apocalyptic number.

200940240 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 200940240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312480000).

200940240 is an abundant number, since it is smaller than the sum of its proper divisors (424019760).

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

200940240 is a wasteful number, since it uses less digits than its factorization.

200940240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 200940240 is about 14175.3391493819. The cubic root of 200940240 is about 585.7185414268.

Adding to 200940240 its reverse (42049002), we get a palindrome (242989242).

The spelling of 200940240 in words is "two hundred million, nine hundred forty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 349 698 1047 1396 1745 2094 2399 2792 3490 4188 4798 5235 5584 6980 7197 8376 9596 10470 11995 13960 14394 16752 19192 20940 23990 27920 28788 35985 38384 41880 47980 57576 71970 83760 95960 115152 143940 191920 287880 575760 837251 1674502 2511753 3349004 4186255 5023506 6698008 8372510 10047012 12558765 13396016 16745020 20094024 25117530 33490040 40188048 50235060 66980080 100470120 200940240