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2090808 = 233271409
BaseRepresentation
bin111111110011100111000
310221020001100
413332130320
51013401213
6112451400
723525436
oct7763470
93836040
102090808
1111a8945
12849b60
13582885
143c5d56
152b4773
hex1fe738

2090808 has 48 divisors (see below), whose sum is σ = 5756400. Its totient is φ = 685440.

The previous prime is 2090807. The next prime is 2090821. The reversal of 2090808 is 8080902.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090807) 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, 4908 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (119925).

22090808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2090808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2878200).

2090808 is an abundant number, since it is smaller than the sum of its proper divisors (3665592).

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

2090808 is a wasteful number, since it uses less digits than its factorization.

2090808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2090808 is about 1445.9626551194. The cubic root of 2090808 is about 127.8708006235.

The spelling of 2090808 in words is "two million, ninety thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 71 72 142 213 284 409 426 568 639 818 852 1227 1278 1636 1704 2454 2556 3272 3681 4908 5112 7362 9816 14724 29039 29448 58078 87117 116156 174234 232312 261351 348468 522702 696936 1045404 2090808