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1250200530 = 232519876991
BaseRepresentation
bin100101010000100…
…1000101111010010
310020010110202201100
41022201020233102
510030022404110
6324020045230
742660346335
oct11241105722
93203422640
101250200530
11591784187
122aa833816
1316c01cc37
14bc07a61c
1574b54bc0
hex4a848bd2

1250200530 has 48 divisors (see below), whose sum is σ = 3252622464. Its totient is φ = 333171360.

The previous prime is 1250200529. The next prime is 1250200537. The reversal of 1250200530 is 350020521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1250200537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175335 + ... + 182325.

It is an arithmetic number, because the mean of its divisors is an integer number (67762968).

Almost surely, 21250200530 is an apocalyptic number.

1250200530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1250200530 is an abundant number, since it is smaller than the sum of its proper divisors (2002421934).

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

1250200530 is a wasteful number, since it uses less digits than its factorization.

1250200530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991 (or 8988 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1250200530 is about 35358.1748680556. The cubic root of 1250200530 is about 1077.2749457743.

Subtracting from 1250200530 its reverse (350020521), we obtain a square (900180009 = 300032).

The spelling of 1250200530 in words is "one billion, two hundred fifty million, two hundred thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1987 3974 5961 6991 9935 11922 13982 17883 19870 20973 29805 34955 35766 41946 59610 62919 69910 89415 104865 125838 178830 209730 314595 629190 13891117 27782234 41673351 69455585 83346702 125020053 138911170 208366755 250040106 416733510 625100265 1250200530