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2806002028840 = 2351811843921019
BaseRepresentation
bin101000110101010010110…
…000010001000100101000
3100221020210002212020200011
4220311102300101010220
5331433143004410330
65545020505421304
7406504226465323
oct50652260210450
910836702766604
102806002028840
11992022aa169a
123939a449a834
131747b2b3a0aa
1499b4ddd17ba
154cecd1a882a
hex28d52c11128

2806002028840 has 64 divisors (see below), whose sum is σ = 6349032144000. Its totient is φ = 1116086065920.

The previous prime is 2806002028813. The next prime is 2806002028867. The reversal of 2806002028840 is 488202006082.

It is an interprime number because it is at equal distance from previous prime (2806002028813) and next prime (2806002028867).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2806002028793 and 2806002028802.

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, 133487851 + ... + 133508869.

It is an arithmetic number, because the mean of its divisors is an integer number (99203627250).

Almost surely, 22806002028840 is an apocalyptic number.

2806002028840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2806002028840 is an abundant number, since it is smaller than the sum of its proper divisors (3543030115160).

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

2806002028840 is a wasteful number, since it uses less digits than its factorization.

2806002028840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39650 (or 39646 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 2806002028840 in words is "two trillion, eight hundred six billion, two million, twenty-eight thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 181 362 724 905 1448 1810 3620 7240 18439 21019 36878 42038 73756 84076 92195 105095 147512 168152 184390 210190 368780 420380 737560 840760 3337459 3804439 6674918 7608878 13349836 15217756 16687295 19022195 26699672 30435512 33374590 38044390 66749180 76088780 133498360 152177560 387569341 775138682 1550277364 1937846705 3100554728 3875693410 7751386820 15502773640 70150050721 140300101442 280600202884 350750253605 561200405768 701500507210 1403001014420 2806002028840