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200772660 = 2235111072843
BaseRepresentation
bin10111111011110…
…00110000110100
3111222210022022110
423331320300310
5402344211120
631531131020
74655353014
oct1375706064
9458708273
10200772660
11a3370520
12572a3a70
1332797bba
141c943c44
151295d2e0
hexbf78c34

200772660 has 96 divisors (see below), whose sum is σ = 619218432. Its totient is φ = 48200320.

The previous prime is 200772653. The next prime is 200772661. The reversal of 200772660 is 66277002.

It is a super-2 number, since 2×2007726602 = 80619322006951200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200772661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69199 + ... + 72041.

It is an arithmetic number, because the mean of its divisors is an integer number (6450192).

Almost surely, 2200772660 is an apocalyptic number.

200772660 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 200772660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309609216).

200772660 is an abundant number, since it is smaller than the sum of its proper divisors (418445772).

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

200772660 is a wasteful number, since it uses less digits than its factorization.

200772660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 200772660 is about 14169.4269467752. The cubic root of 200772660 is about 585.5556704290. Note that the first 3 decimals are identical.

The spelling of 200772660 in words is "two hundred million, seven hundred seventy-two thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 107 110 132 165 214 220 321 330 428 535 642 660 1070 1177 1284 1605 2140 2354 2843 3210 3531 4708 5686 5885 6420 7062 8529 11372 11770 14124 14215 17058 17655 23540 28430 31273 34116 35310 42645 56860 62546 70620 85290 93819 125092 156365 170580 187638 304201 312730 375276 469095 608402 625460 912603 938190 1216804 1521005 1825206 1876380 3042010 3346211 3650412 4563015 6084020 6692422 9126030 10038633 13384844 16731055 18252060 20077266 33462110 40154532 50193165 66924220 100386330 200772660