Search a number
-
+
2680432480 = 255111522973
BaseRepresentation
bin1001111111000100…
…0010011101100000
320220210201002010001
42133301002131200
520442142314410
61121550545344
7123265204645
oct23761023540
96823632101
102680432480
111156041660
12629808254
1333942512b
141b5dbbdcc
1510a4bc33a
hex9fc42760

2680432480 has 48 divisors (see below), whose sum is σ = 6908210064. Its totient is φ = 974702080.

The previous prime is 2680432463. The next prime is 2680432487. The reversal of 2680432480 is 842340862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680432487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759727 + ... + 763246.

It is an arithmetic number, because the mean of its divisors is an integer number (143921043).

Almost surely, 22680432480 is an apocalyptic number.

2680432480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680432480 is an abundant number, since it is smaller than the sum of its proper divisors (4227777584).

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

2680432480 is a wasteful number, since it uses less digits than its factorization.

2680432480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522999 (or 1522991 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 2680432480 is about 51772.8932936918. The cubic root of 2680432480 is about 1389.1046249579.

The spelling of 2680432480 in words is "two billion, six hundred eighty million, four hundred thirty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 880 1760 1522973 3045946 6091892 7614865 12183784 15229730 16752703 24367568 30459460 33505406 48735136 60918920 67010812 83763515 121837840 134021624 167527030 243675680 268043248 335054060 536086496 670108120 1340216240 2680432480