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1225432050 = 235261199673
BaseRepresentation
bin100100100001010…
…1001101111110010
310011101212101202020
41021002221233302
510002202311200
6321333132310
742240000123
oct11102515762
93141771666
101225432050
115797a7267
122a248a096
13166b5a22b
14b8a7004a
15728b0ea0
hex490a9bf2

1225432050 has 96 divisors (see below), whose sum is σ = 3109027200. Its totient is φ = 319334400.

The previous prime is 1225432009. The next prime is 1225432051. The reversal of 1225432050 is 502345221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225432050.

It is not an unprimeable number, because it can be changed into a prime (1225432051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1820514 + ... + 1821186.

It is an arithmetic number, because the mean of its divisors is an integer number (32385700).

Almost surely, 21225432050 is an apocalyptic number.

1225432050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225432050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554513600).

1225432050 is an abundant number, since it is smaller than the sum of its proper divisors (1883595150).

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

1225432050 is a wasteful number, since it uses less digits than its factorization.

1225432050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1225432050 is about 35006.1715987338. The cubic root of 1225432050 is about 1070.1132584570.

Adding to 1225432050 its reverse (502345221), we get a palindrome (1727777271).

The spelling of 1225432050 in words is "one billion, two hundred twenty-five million, four hundred thirty-two thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 61 75 122 150 183 199 305 366 398 597 610 673 915 995 1194 1346 1525 1830 1990 2019 2985 3050 3365 4038 4575 4975 5970 6730 9150 9950 10095 12139 14925 16825 20190 24278 29850 33650 36417 41053 50475 60695 72834 82106 100950 121390 123159 133927 182085 205265 246318 267854 303475 364170 401781 410530 606950 615795 669635 803562 910425 1026325 1231590 1339270 1820850 2008905 2052650 3078975 3348175 4017810 6157950 6696350 8169547 10044525 16339094 20089050 24508641 40847735 49017282 81695470 122543205 204238675 245086410 408477350 612716025 1225432050