Search a number
-
+
271491490 = 2531875779
BaseRepresentation
bin10000001011101…
…010000110100010
3200220212012022101
4100023222012202
51024000211430
642535001014
76504432244
oct2013520642
9626765271
10271491490
1112a282636
1276b0916a
134432896a
14280b2094
1518c7bdca
hex102ea1a2

271491490 has 16 divisors (see below), whose sum is σ = 504449280. Its totient is φ = 105093360.

The previous prime is 271491461. The next prime is 271491491. The reversal of 271491490 is 94194172.

It is not an unprimeable number, because it can be changed into a prime (271491491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437580 + ... + 438199.

It is an arithmetic number, because the mean of its divisors is an integer number (31528080).

Almost surely, 2271491490 is an apocalyptic number.

271491490 is a deficient number, since it is larger than the sum of its proper divisors (232957790).

271491490 is a wasteful number, since it uses less digits than its factorization.

271491490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875817.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 271491490 is about 16476.9988165321. The cubic root of 271491490 is about 647.5183399942.

The spelling of 271491490 in words is "two hundred seventy-one million, four hundred ninety-one thousand, four hundred ninety".

Divisors: 1 2 5 10 31 62 155 310 875779 1751558 4378895 8757790 27149149 54298298 135745745 271491490