Search a number
-
+
200781371 = 724097579
BaseRepresentation
bin10111111011110…
…10111000111011
3111222210202021002
423331322320323
5402400000441
631531235215
74655420300
oct1375727073
9458722232
10200781371
11a337701a
12572a8b0b
133279bb5b
141c9470a7
1512960b9b
hexbf7ae3b

200781371 has 6 divisors (see below), whose sum is σ = 233562060. Its totient is φ = 172098276.

The previous prime is 200781353. The next prime is 200781391. The reversal of 200781371 is 173187002.

It is a de Polignac number, because none of the positive numbers 2k-200781371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200781311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2048741 + ... + 2048838.

It is an arithmetic number, because the mean of its divisors is an integer number (38927010).

Almost surely, 2200781371 is an apocalyptic number.

200781371 is a deficient number, since it is larger than the sum of its proper divisors (32780689).

200781371 is an equidigital number, since it uses as much as digits as its factorization.

200781371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097593 (or 4097586 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 200781371 is about 14169.7343306076. The cubic root of 200781371 is about 585.5641388823.

The spelling of 200781371 in words is "two hundred million, seven hundred eighty-one thousand, three hundred seventy-one".

Divisors: 1 7 49 4097579 28683053 200781371