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2104002420 = 2235132697439
BaseRepresentation
bin111110101101000…
…1000011101110100
312102122001101201120
41331122020131310
513302111034140
6544440023540
7103065503562
oct17532103564
95378041646
102104002420
1198a722183
124a8761bb0
13276b8c860
1415d60ca32
15c4aa81d0
hex7d688774

2104002420 has 48 divisors (see below), whose sum is σ = 6344378880. Its totient is φ = 517908096.

The previous prime is 2104002419. The next prime is 2104002421. The reversal of 2104002420 is 242004012.

It is an interprime number because it is at equal distance from previous prime (2104002419) and next prime (2104002421).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2104002420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104002421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347940 + ... + 1349499.

It is an arithmetic number, because the mean of its divisors is an integer number (132174560).

Almost surely, 22104002420 is an apocalyptic number.

2104002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104002420 is an abundant number, since it is smaller than the sum of its proper divisors (4240376460).

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

2104002420 is a wasteful number, since it uses less digits than its factorization.

2104002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697464 (or 2697462 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2104002420 is about 45869.4061439648. The cubic root of 2104002420 is about 1281.3922067183.

Adding to 2104002420 its reverse (242004012), we get a palindrome (2346006432).

The spelling of 2104002420 in words is "two billion, one hundred four million, two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 2697439 5394878 8092317 10789756 13487195 16184634 26974390 32369268 35066707 40461585 53948780 70133414 80923170 105200121 140266828 161846340 175333535 210400242 350667070 420800484 526000605 701334140 1052001210 2104002420