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2890090 = 257194153
BaseRepresentation
bin1011000001100101101010
312102211110101
423001211222
51214440330
6141540014
733364630
oct13014552
95384411
102890090
1116a4405
12b7460a
137a2618
14553350
153c14ca
hex2c196a

2890090 has 64 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 898560.

The previous prime is 2890087. The next prime is 2890091. The reversal of 2890090 is 900982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54504 + ... + 54556.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

22890090 is an apocalyptic number.

2890090 is an abundant number, since it is smaller than the sum of its proper divisors (3641750).

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

2890090 is a wasteful number, since it uses less digits than its factorization.

2890090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2890090 is about 1700.0264703822. The cubic root of 2890090 is about 142.4416915441.

The spelling of 2890090 in words is "two million, eight hundred ninety thousand, ninety".

Divisors: 1 2 5 7 10 14 19 35 38 41 53 70 82 95 106 133 190 205 265 266 287 371 410 530 574 665 742 779 1007 1330 1435 1558 1855 2014 2173 2870 3710 3895 4346 5035 5453 7049 7790 10070 10865 10906 14098 15211 21730 27265 30422 35245 41287 54530 70490 76055 82574 152110 206435 289009 412870 578018 1445045 2890090