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200761731 = 32139160481
BaseRepresentation
bin10111111011101…
…10000110000011
3111222202202022200
423331312012003
5402343333411
631531004243
74655306112
oct1375660603
9458682280
10200761731
11a3363295
1257299683
1332792c31
141c93dc79
1512959e56
hexbf76183

200761731 has 12 divisors (see below), whose sum is σ = 292077240. Its totient is φ = 132877440.

The previous prime is 200761723. The next prime is 200761763. The reversal of 200761731 is 137167002.

It is not a de Polignac number, because 200761731 - 23 = 200761723 is a prime.

It is a super-2 number, since 2×2007617312 = 80610545268232722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200761695 and 200761704.

It is not an unprimeable number, because it can be changed into a prime (200761531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78990 + ... + 81491.

It is an arithmetic number, because the mean of its divisors is an integer number (24339770).

Almost surely, 2200761731 is an apocalyptic number.

200761731 is a deficient number, since it is larger than the sum of its proper divisors (91315509).

200761731 is a wasteful number, since it uses less digits than its factorization.

200761731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160626 (or 160623 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 200761731 is about 14169.0412872572. The cubic root of 200761731 is about 585.5450453867.

The spelling of 200761731 in words is "two hundred million, seven hundred sixty-one thousand, seven hundred thirty-one".

Divisors: 1 3 9 139 417 1251 160481 481443 1444329 22306859 66920577 200761731