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1230052000 = 25531718089
BaseRepresentation
bin100100101010001…
…0001101010100000
310011201120010010111
41021110101222200
510004343131000
6322020141104
742324161302
oct11124215240
93151503114
101230052000
11581372301
122a3b37794
13167ab7028
14b9513972
1572ec4cba
hex49511aa0

1230052000 has 96 divisors (see below), whose sum is σ = 3200193360. Its totient is φ = 463052800.

The previous prime is 1230051997. The next prime is 1230052003. The reversal of 1230052000 is 2500321.

It is an interprime number because it is at equal distance from previous prime (1230051997) and next prime (1230052003).

It can be written as a sum of positive squares in 8 ways, for example, as 359329936 + 870722064 = 18956^2 + 29508^2 .

It is not an unprimeable number, because it can be changed into a prime (1230052003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58956 + ... + 77044.

Almost surely, 21230052000 is an apocalyptic number.

1230052000 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 1230052000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600096680).

1230052000 is an abundant number, since it is smaller than the sum of its proper divisors (1970141360).

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

1230052000 is a wasteful number, since it uses less digits than its factorization.

1230052000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18131 (or 18113 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1230052000 is about 35072.0971713982. The cubic root of 1230052000 is about 1071.4563683794.

Adding to 1230052000 its reverse (2500321), we get a palindrome (1232552321).

The spelling of 1230052000 in words is "one billion, two hundred thirty million, fifty-two thousand".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 125 136 160 170 200 250 272 340 400 425 500 544 680 800 850 1000 1360 1700 2000 2125 2720 3400 4000 4250 6800 8500 13600 17000 18089 34000 36178 68000 72356 90445 144712 180890 289424 307513 361780 452225 578848 615026 723560 904450 1230052 1447120 1537565 1808900 2261125 2460104 2894240 3075130 3617800 4522250 4920208 6150260 7235600 7687825 9044500 9840416 12300520 14471200 15375650 18089000 24601040 30751300 36178000 38439125 49202080 61502600 72356000 76878250 123005200 153756500 246010400 307513000 615026000 1230052000