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1284425150 = 25261421123
BaseRepresentation
bin100110010001110…
…1100010110111110
310022111212120001212
41030203230112332
510112303101100
6331241404422
743554301511
oct11443542676
93274776055
101284425150
115aa02a698
122ba199712
13176143aa8
14c2828d78
1577b65635
hex4c8ec5be

1284425150 has 24 divisors (see below), whose sum is σ = 2428200984. Its totient is φ = 505346400.

The previous prime is 1284425119. The next prime is 1284425171. The reversal of 1284425150 is 515244821.

It is a super-3 number, since 3×12844251503 (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 207512 + ... + 213611.

It is an arithmetic number, because the mean of its divisors is an integer number (101175041).

Almost surely, 21284425150 is an apocalyptic number.

1284425150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1284425150 is a deficient number, since it is larger than the sum of its proper divisors (1143775834).

1284425150 is a wasteful number, since it uses less digits than its factorization.

1284425150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421196 (or 421191 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 1284425150 is about 35838.8776330956. The cubic root of 1284425150 is about 1087.0168268003.

Adding to 1284425150 its reverse (515244821), we get a palindrome (1799669971).

The spelling of 1284425150 in words is "one billion, two hundred eighty-four million, four hundred twenty-five thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 61 122 305 610 1525 3050 421123 842246 2105615 4211230 10528075 21056150 25688503 51377006 128442515 256885030 642212575 1284425150