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1203030220 = 225719835449
BaseRepresentation
bin100011110110100…
…1100100011001100
310002211201021012211
41013231030203030
54430433431340
6315213040204
741545405510
oct10755144314
93084637184
101203030220
11568096457
12296a86064
13162315802
14b5abc140
15709385ea
hex47b4c8cc

1203030220 has 96 divisors (see below), whose sum is σ = 3076416000. Its totient is φ = 385979904.

The previous prime is 1203030217. The next prime is 1203030251. The reversal of 1203030220 is 220303021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203030220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218056 + ... + 223504.

It is an arithmetic number, because the mean of its divisors is an integer number (32046000).

Almost surely, 21203030220 is an apocalyptic number.

1203030220 is a gapful number since it is divisible by the number (10) 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 1203030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1538208000).

1203030220 is an abundant number, since it is smaller than the sum of its proper divisors (1873385780).

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

1203030220 is a wasteful number, since it uses less digits than its factorization.

1203030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1203030220 is about 34684.7260332268. The cubic root of 1203030220 is about 1063.5522865734.

Adding to 1203030220 its reverse (220303021), we get a palindrome (1423333241).

The spelling of 1203030220 in words is "one billion, two hundred three million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 83 95 133 140 166 190 266 332 380 415 532 581 665 830 1162 1330 1577 1660 2324 2660 2905 3154 5449 5810 6308 7885 10898 11039 11620 15770 21796 22078 27245 31540 38143 44156 54490 55195 76286 103531 108980 110390 152572 190715 207062 220780 381430 414124 452267 517655 724717 762860 904534 1035310 1449434 1809068 2070620 2261335 2898868 3165869 3623585 4522670 6331738 7247170 8593073 9045340 12663476 14494340 15829345 17186146 31658690 34372292 42965365 60151511 63317380 85930730 120303022 171861460 240606044 300757555 601515110 1203030220