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201012018 = 23891013727
BaseRepresentation
bin10111111101100…
…11001100110010
3112000020110122120
423332303030302
5402424341033
631540215110
74660400604
oct1376631462
9460213576
10201012018
11a3514339
125739a496
133284cb2c
141c9a7174
15129a91b3
hexbfb3332

201012018 has 32 divisors (see below), whose sum is σ = 410676480. Its totient is φ = 65577600.

The previous prime is 201011983. The next prime is 201012047. The reversal of 201012018 is 810210102.

It is a junction number, because it is equal to n+sod(n) for n = 201011988 and 201012006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52071 + ... + 55797.

It is an arithmetic number, because the mean of its divisors is an integer number (12833640).

Almost surely, 2201012018 is an apocalyptic number.

201012018 is an abundant number, since it is smaller than the sum of its proper divisors (209664462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201012018 is a wasteful number, since it uses less digits than its factorization.

201012018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 201012018 is about 14177.8707146031. The cubic root of 201012018 is about 585.7882747640.

It can be divided in two parts, 2010 and 12018, that added together give a triangular number (14028 = T167).

The spelling of 201012018 in words is "two hundred one million, twelve thousand, eighteen".

Divisors: 1 2 3 6 89 101 178 202 267 303 534 606 3727 7454 8989 11181 17978 22362 26967 53934 331703 376427 663406 752854 995109 1129281 1990218 2258562 33502003 67004006 100506009 201012018