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2068780 = 225722111
BaseRepresentation
bin111111001000100101100
310220002211111
413321010230
51012200110
6112201404
723404300
oct7710454
93802744
102068780
11119333a
12839264
1357583c
143bbd00
152ace8a
hex1f912c

2068780 has 36 divisors (see below), whose sum is σ = 5056128. Its totient is φ = 708960.

The previous prime is 2068769. The next prime is 2068811. The reversal of 2068780 is 878602.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 76 + ... + 2035.

It is an arithmetic number, because the mean of its divisors is an integer number (140448).

22068780 is an apocalyptic number.

2068780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2068780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528064).

2068780 is an abundant number, since it is smaller than the sum of its proper divisors (2987348).

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

2068780 is a wasteful number, since it uses less digits than its factorization.

2068780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2125 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2068780 is about 1438.3254151964. The cubic root of 2068780 is about 127.4201473591.

The spelling of 2068780 in words is "two million, sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 2111 4222 8444 10555 14777 21110 29554 42220 59108 73885 103439 147770 206878 295540 413756 517195 1034390 2068780