Search a number
-
+
201025113 = 3311215461
BaseRepresentation
bin10111111101101…
…10011001011001
3112000021010121120
423332312121121
5402430300423
631540355453
74660454022
oct1376663131
9460233546
10201025113
11a3523163
12573a5b89
1332855a93
141c9abc49
15129acee3
hexbfb6659

201025113 has 8 divisors (see below), whose sum is σ = 268896576. Its totient is φ = 133585200.

The previous prime is 201025109. The next prime is 201025117. The reversal of 201025113 is 311520102.

It is an interprime number because it is at equal distance from previous prime (201025109) and next prime (201025117).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201025113 - 22 = 201025109 is a prime.

It is a super-2 number, since 2×2010251132 = 80822192113325538, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201025092 and 201025101.

It is not an unprimeable number, because it can be changed into a prime (201025117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106798 + ... + 108663.

It is an arithmetic number, because the mean of its divisors is an integer number (33612072).

Almost surely, 2201025113 is an apocalyptic number.

It is an amenable number.

201025113 is a deficient number, since it is larger than the sum of its proper divisors (67871463).

201025113 is a wasteful number, since it uses less digits than its factorization.

201025113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215775.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 201025113 is about 14178.3325183182. The cubic root of 201025113 is about 585.8009949502.

Adding to 201025113 its reverse (311520102), we get a palindrome (512545215).

The spelling of 201025113 in words is "two hundred one million, twenty-five thousand, one hundred thirteen".

Divisors: 1 3 311 933 215461 646383 67008371 201025113