Search a number
-
+
2790680 = 23569767
BaseRepresentation
bin1010101001010100011000
312020210002112
422221110120
51203300210
6135451452
732502044
oct12512430
95223075
102790680
111636752
12b26b88
137692b9
14529024
153a1d05
hex2a9518

2790680 has 16 divisors (see below), whose sum is σ = 6279120. Its totient is φ = 1116256.

The previous prime is 2790679. The next prime is 2790707. The reversal of 2790680 is 860972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34844 + ... + 34923.

It is an arithmetic number, because the mean of its divisors is an integer number (392445).

22790680 is an apocalyptic number.

2790680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2790680 is an abundant number, since it is smaller than the sum of its proper divisors (3488440).

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

2790680 is a wasteful number, since it uses less digits than its factorization.

2790680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69778 (or 69774 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2790680 is about 1670.5328491233. The cubic root of 2790680 is about 140.7894178944.

The spelling of 2790680 in words is "two million, seven hundred ninety thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 69767 139534 279068 348835 558136 697670 1395340 2790680