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283798020 = 223511795443
BaseRepresentation
bin10000111010100…
…110101000000100
3201210000102200210
4100322212220010
51040123014040
644054435420
710014146322
oct2072465004
9653012623
10283798020
11136218720
127b062b70
1346a4732c
1429996d12
1519dad480
hex10ea6a04

283798020 has 96 divisors (see below), whose sum is σ = 878008320. Its totient is φ = 67916160.

The previous prime is 283798019. The next prime is 283798049. The reversal of 283798020 is 20897382.

It is a self number, because there is not a number n which added to its sum of digits gives 283798020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49419 + ... + 54861.

It is an arithmetic number, because the mean of its divisors is an integer number (9145920).

Almost surely, 2283798020 is an apocalyptic number.

283798020 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 283798020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439004160).

283798020 is an abundant number, since it is smaller than the sum of its proper divisors (594210300).

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

283798020 is a wasteful number, since it uses less digits than its factorization.

283798020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5545 (or 5543 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 283798020 is about 16846.3058265010. The cubic root of 283798020 is about 657.1579816035.

The spelling of 283798020 in words is "two hundred eighty-three million, seven hundred ninety-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 79 110 132 158 165 220 237 316 330 395 474 660 790 869 948 1185 1580 1738 2370 2607 3476 4345 4740 5214 5443 8690 10428 10886 13035 16329 17380 21772 26070 27215 32658 52140 54430 59873 65316 81645 108860 119746 163290 179619 239492 299365 326580 359238 429997 598730 718476 859994 898095 1197460 1289991 1719988 1796190 2149985 2579982 3592380 4299970 4729967 5159964 6449955 8599940 9459934 12899910 14189901 18919868 23649835 25799820 28379802 47299670 56759604 70949505 94599340 141899010 283798020