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1233130000 = 2454317389
BaseRepresentation
bin100100110000000…
…0001001000010000
310011221100111100111
41021200001020100
510011140130000
6322210131104
742362301124
oct11140011020
93157314314
101233130000
11583084903
122a4b80a94
1316862402b
14b9ab5584
15733d1cba
hex49801210

1233130000 has 100 divisors (see below), whose sum is σ = 3002648220. Its totient is φ = 490432000.

The previous prime is 1233129991. The next prime is 1233130007. The reversal of 1233130000 is 313321.

It can be written as a sum of positive squares in 10 ways, for example, as 1223320576 + 9809424 = 34976^2 + 3132^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (1233130007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3169806 + ... + 3170194.

Almost surely, 21233130000 is an apocalyptic number.

1233130000 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 1233130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501324110).

1233130000 is an abundant number, since it is smaller than the sum of its proper divisors (1769518220).

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

1233130000 is an equidigital number, since it uses as much as digits as its factorization.

1233130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1233130000 is about 35115.9507916274. The cubic root of 1233130000 is about 1072.3493375842.

Adding to 1233130000 its reverse (313321), we get a palindrome (1233443321).

The spelling of 1233130000 in words is "one billion, two hundred thirty-three million, one hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 317 389 400 500 625 634 778 1000 1250 1268 1556 1585 1945 2000 2500 2536 3112 3170 3890 5000 5072 6224 6340 7780 7925 9725 10000 12680 15560 15850 19450 25360 31120 31700 38900 39625 48625 63400 77800 79250 97250 123313 126800 155600 158500 194500 198125 243125 246626 317000 389000 396250 486250 493252 616565 634000 778000 792500 972500 986504 1233130 1585000 1945000 1973008 2466260 3082825 3170000 3890000 4932520 6165650 9865040 12331300 15414125 24662600 30828250 49325200 61656500 77070625 123313000 154141250 246626000 308282500 616565000 1233130000