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1634303412 = 223372161777
BaseRepresentation
bin110000101101001…
…0111110110110100
311012220020012211000
41201122113312310
511321340202122
6430100443300
755333230660
oct14132276664
94186205730
101634303412
11769581385
123973a9530
13200786751
141170a38a0
15987280ac
hex61697db4

1634303412 has 48 divisors (see below), whose sum is σ = 4842382720. Its totient is φ = 466943616.

The previous prime is 1634303401. The next prime is 1634303417. The reversal of 1634303412 is 2143034361.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634303417) by changing a digit.

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, 1080133 + ... + 1081644.

Almost surely, 21634303412 is an apocalyptic number.

1634303412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1634303412 is an abundant number, since it is smaller than the sum of its proper divisors (3208079308).

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

1634303412 is a wasteful number, since it uses less digits than its factorization.

1634303412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161797 (or 2161789 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1634303412 is about 40426.5186727722. The cubic root of 1634303412 is about 1177.9067100878.

Adding to 1634303412 its reverse (2143034361), we get a palindrome (3777337773).

The spelling of 1634303412 in words is "one billion, six hundred thirty-four million, three hundred three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 2161777 4323554 6485331 8647108 12970662 15132439 19455993 25941324 30264878 38911986 45397317 58367979 60529756 77823972 90794634 116735958 136191951 181589268 233471916 272383902 408575853 544767804 817151706 1634303412