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2080806 = 2371337103
BaseRepresentation
bin111111100000000100110
310220201022220
413330000212
51013041211
6112333210
723454330
oct7740046
93821286
102080806
1111a1382
12844206
1357b160
143c2450
152b1806
hex1fc026

2080806 has 64 divisors (see below), whose sum is σ = 5311488. Its totient is φ = 528768.

The previous prime is 2080801. The next prime is 2080807. The reversal of 2080806 is 6080802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080801) 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, 20151 + ... + 20253.

It is an arithmetic number, because the mean of its divisors is an integer number (82992).

22080806 is an apocalyptic number.

2080806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a pronic number, being equal to 1442×1443.

It is a practical number, because each smaller number is the sum of distinct divisors of 2080806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2655744).

2080806 is an abundant number, since it is smaller than the sum of its proper divisors (3230682).

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

2080806 is a wasteful number, since it uses less digits than its factorization.

2080806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2080806 is about 1442.4999133449. The cubic root of 2080806 is about 127.6665719840. Note that the first 3 decimals are identical.

The spelling of 2080806 in words is "two million, eighty thousand, eight hundred six".

Divisors: 1 2 3 6 7 13 14 21 26 37 39 42 74 78 91 103 111 182 206 222 259 273 309 481 518 546 618 721 777 962 1339 1442 1443 1554 2163 2678 2886 3367 3811 4017 4326 6734 7622 8034 9373 10101 11433 18746 20202 22866 26677 28119 49543 53354 56238 80031 99086 148629 160062 297258 346801 693602 1040403 2080806