Search a number
-
+
20112452000 = 25537963647
BaseRepresentation
bin10010101110110010…
…111010100110100000
31220220200010102101122
4102232302322212200
5312142241431000
613123423351412
71311256010204
oct225662724640
956820112348
1020112452000
118590a55963
123a93752568
131b86a8b094
14d8b1d8b04
157caa80085
hex4aecba9a0

20112452000 has 96 divisors (see below), whose sum is σ = 50042603520. Its totient is φ = 7943020800.

The previous prime is 20112451999. The next prime is 20112452047. The reversal of 20112452000 is 25421102.

It is a self number, because there is not a number n which added to its sum of digits gives 20112452000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284177 + ... + 347823.

It is an arithmetic number, because the mean of its divisors is an integer number (521277120).

Almost surely, 220112452000 is an apocalyptic number.

20112452000 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 20112452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25021301760).

20112452000 is an abundant number, since it is smaller than the sum of its proper divisors (29930151520).

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

20112452000 is an equidigital number, since it uses as much as digits as its factorization.

20112452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63751 (or 63733 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 20112452000 its reverse (25421102), we get a palindrome (20137873102).

The spelling of 20112452000 in words is "twenty billion, one hundred twelve million, four hundred fifty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 79 80 100 125 158 160 200 250 316 395 400 500 632 790 800 1000 1264 1580 1975 2000 2528 3160 3950 4000 6320 7900 9875 12640 15800 19750 31600 39500 63200 63647 79000 127294 158000 254588 316000 318235 509176 636470 1018352 1272940 1591175 2036704 2545880 3182350 5028113 5091760 6364700 7955875 10056226 10183520 12729400 15911750 20112452 25140565 25458800 31823500 40224904 50281130 50917600 63647000 80449808 100562260 125702825 127294000 160899616 201124520 251405650 254588000 402249040 502811300 628514125 804498080 1005622600 1257028250 2011245200 2514056500 4022490400 5028113000 10056226000 20112452000