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201017982 = 23113045727
BaseRepresentation
bin10111111101101…
…00101001111110
3112000020202211110
423332310221332
5402430033412
631540302450
74660424154
oct1376645176
9460222743
10201017982
11a3518870
12573a1a26
1332852769
141c9a93d4
15129aad3c
hexbfb4a7e

201017982 has 16 divisors (see below), whose sum is σ = 438584832. Its totient is φ = 60914520.

The previous prime is 201017959. The next prime is 201017987. The reversal of 201017982 is 289710102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201017987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522798 + ... + 1522929.

It is an arithmetic number, because the mean of its divisors is an integer number (27411552).

Almost surely, 2201017982 is an apocalyptic number.

201017982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201017982 is an abundant number, since it is smaller than the sum of its proper divisors (237566850).

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

201017982 is a wasteful number, since it uses less digits than its factorization.

201017982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045743.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 201017982 is about 14178.0810408179. The cubic root of 201017982 is about 585.7940681270.

The spelling of 201017982 in words is "two hundred one million, seventeen thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 3045727 6091454 9137181 18274362 33502997 67005994 100508991 201017982