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2680434420 = 2235260917123
BaseRepresentation
bin1001111111000100…
…0010111011110100
320220210201011202220
42133301002323310
520442142400140
61121551002340
7123265213416
oct23761027364
96823634686
102680434420
111156043064
126298093b0
13339425c91
141b5dbc9b6
1510a4bcbd0
hex9fc42ef4

2680434420 has 48 divisors (see below), whose sum is σ = 7508531520. Its totient is φ = 714466816.

The previous prime is 2680434413. The next prime is 2680434431. The reversal of 2680434420 is 244340862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147979 + ... + 165101.

It is an arithmetic number, because the mean of its divisors is an integer number (156427740).

Almost surely, 22680434420 is an apocalyptic number.

2680434420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2680434420 is an abundant number, since it is smaller than the sum of its proper divisors (4828097100).

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

2680434420 is a wasteful number, since it uses less digits than its factorization.

2680434420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19744 (or 19742 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 2680434420 is about 51772.9120293615. The cubic root of 2680434420 is about 1389.1049600857.

The spelling of 2680434420 in words is "two billion, six hundred eighty million, four hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2609 5218 7827 10436 13045 15654 17123 26090 31308 34246 39135 51369 52180 68492 78270 85615 102738 156540 171230 205476 256845 342460 513690 1027380 44673907 89347814 134021721 178695628 223369535 268043442 446739070 536086884 670108605 893478140 1340217210 2680434420