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537081490 = 25112443869
BaseRepresentation
bin100000000000110…
…011011010010010
31101102121120022001
4200000303122102
52044443101430
6125143304214
716211055151
oct4000633222
91342546261
10537081490
11256194300
1212ba4b06a
13873693ca
1451489598
15322403ca
hex20033692

537081490 has 24 divisors (see below), whose sum is σ = 1062624780. Its totient is φ = 195301920.

The previous prime is 537081469. The next prime is 537081497. The reversal of 537081490 is 94180735.

It can be written as a sum of positive squares in 2 ways, for example, as 513974241 + 23107249 = 22671^2 + 4807^2 .

It is not an unprimeable number, because it can be changed into a prime (537081497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220725 + ... + 223144.

Almost surely, 2537081490 is an apocalyptic number.

537081490 is a deficient number, since it is larger than the sum of its proper divisors (525543290).

537081490 is a wasteful number, since it uses less digits than its factorization.

537081490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443898 (or 443887 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 537081490 is about 23175.0186623442. The cubic root of 537081490 is about 812.8555868416.

The spelling of 537081490 in words is "five hundred thirty-seven million, eighty-one thousand, four hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 121 242 605 1210 443869 887738 2219345 4438690 4882559 9765118 24412795 48825590 53708149 107416298 268540745 537081490