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28810676040 = 23353712975003
BaseRepresentation
bin11010110101010000…
…000000011101001000
32202100212100222121120
4122311100000131020
5433001013113130
621122504435240
72036645464026
oct326520003510
982325328546
1028810676040
111124496a373
125700778b20
132941b6b103
1415744d7716
15b394eb910
hex6b5400748

28810676040 has 128 divisors (see below), whose sum is σ = 88854226560. Its totient is φ = 7467945984.

The previous prime is 28810676039. The next prime is 28810676051. The reversal of 28810676040 is 4067601882.

It is a junction number, because it is equal to n+sod(n) for n = 28810675983 and 28810676001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5756179 + ... + 5761181.

It is an arithmetic number, because the mean of its divisors is an integer number (694173645).

Almost surely, 228810676040 is an apocalyptic number.

28810676040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28810676040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44427113280).

28810676040 is an abundant number, since it is smaller than the sum of its proper divisors (60043550520).

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

28810676040 is a wasteful number, since it uses less digits than its factorization.

28810676040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351 (or 6347 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 28810676040 in words is "twenty-eight billion, eight hundred ten million, six hundred seventy-six thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 37 40 60 74 111 120 148 185 222 296 370 444 555 740 888 1110 1297 1480 2220 2594 3891 4440 5003 5188 6485 7782 10006 10376 12970 15009 15564 19455 20012 25015 25940 30018 31128 38910 40024 47989 50030 51880 60036 75045 77820 95978 100060 120072 143967 150090 155640 185111 191956 200120 239945 287934 300180 370222 383912 479890 555333 575868 600360 719835 740444 925555 959780 1110666 1151736 1439670 1480888 1851110 1919560 2221332 2776665 2879340 3702220 4442664 5553330 5758680 6488891 7404440 11106660 12977782 19466673 22213320 25955564 32444455 38933346 51911128 64888910 77866692 97333365 129777820 155733384 194666730 240088967 259555640 389333460 480177934 720266901 778666920 960355868 1200444835 1440533802 1920711736 2400889670 2881067604 3601334505 4801779340 5762135208 7202669010 9603558680 14405338020 28810676040