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201012305 = 51319375383
BaseRepresentation
bin10111111101100…
…11010001010001
3112000020111001012
423332303101101
5402424343210
631540220305
74660401464
oct1376632121
9460214035
10201012305
11a351457a
125739a695
133284ccc0
141c9a72db
15129a9305
hexbfb3451

201012305 has 64 divisors (see below), whose sum is σ = 289578240. Its totient is φ = 132627456.

The previous prime is 201012247. The next prime is 201012319. The reversal of 201012305 is 503210102.

It is a happy number.

It is not a de Polignac number, because 201012305 - 216 = 200946769 is a prime.

It is a super-2 number, since 2×2010123052 = 80811893522826050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201012305.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2421794 + ... + 2421876.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 2201012305 is an apocalyptic number.

It is an amenable number.

201012305 is a deficient number, since it is larger than the sum of its proper divisors (88565935).

201012305 is a wasteful number, since it uses less digits than its factorization.

201012305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 201012305 is about 14177.8808360065. The cubic root of 201012305 is about 585.7885535553.

Adding to 201012305 its reverse (503210102), we get a palindrome (704222407).

The spelling of 201012305 in words is "two hundred one million, twelve thousand, three hundred five".

Divisors: 1 5 13 19 37 53 65 83 95 185 247 265 415 481 689 703 1007 1079 1235 1577 1961 2405 3071 3445 3515 4399 5035 5395 7885 9139 9805 13091 15355 20501 21995 25493 37259 39923 45695 57187 58349 65455 83581 102505 127465 162763 186295 199615 285935 291745 417905 484367 758537 813815 1086553 2115919 2421835 3092497 3792685 5432765 10579595 15462485 40202461 201012305