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200031013 = 7134746769
BaseRepresentation
bin10111110110000…
…11101100100101
3111221101121222001
423323003230211
5402201443023
631503205301
74646143540
oct1373035445
9457347861
10200031013
11a2a04296
1256ba6831
1332598460
141c7cd857
15128636ad
hexbec3b25

200031013 has 16 divisors (see below), whose sum is σ = 251435520. Its totient is φ = 154895616.

The previous prime is 200031011. The next prime is 200031071. The reversal of 200031013 is 310130002.

It is a cyclic number.

It is not a de Polignac number, because 200031013 - 21 = 200031011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200031011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19108 + ... + 27661.

It is an arithmetic number, because the mean of its divisors is an integer number (15714720).

Almost surely, 2200031013 is an apocalyptic number.

It is an amenable number.

200031013 is a deficient number, since it is larger than the sum of its proper divisors (51404507).

200031013 is a wasteful number, since it uses less digits than its factorization.

200031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46836.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 200031013 is about 14143.2320563583. The cubic root of 200031013 is about 584.8337736010.

Adding to 200031013 its reverse (310130002), we get a palindrome (510161015).

The spelling of 200031013 in words is "two hundred million, thirty-one thousand, thirteen".

Divisors: 1 7 13 47 91 329 611 4277 46769 327383 607997 2198143 4255979 15387001 28575859 200031013