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637434050 = 252112105361
BaseRepresentation
bin100101111111100…
…111100011000010
31122102110000010112
4211333213203002
52301140342200
6143130231322
721540046211
oct4577474302
91572400115
10637434050
112a78a6700
12159585542
13a20a4516
146092d078
153ae64535
hex25fe78c2

637434050 has 36 divisors (see below), whose sum is σ = 1303222578. Its totient is φ = 231792000.

The previous prime is 637434043. The next prime is 637434067. The reversal of 637434050 is 50434736.

It can be written as a sum of positive squares in 3 ways, for example, as 571353409 + 66080641 = 23903^2 + 8129^2 .

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 junction number, because it is equal to n+sod(n) for n = 637433998 and 637434016.

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 17 ways as a sum of consecutive naturals, for example, 46631 + ... + 58730.

Almost surely, 2637434050 is an apocalyptic number.

637434050 is an abundant number, since it is smaller than the sum of its proper divisors (665788528).

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

637434050 is a wasteful number, since it uses less digits than its factorization.

637434050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105395 (or 105379 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 637434050 is about 25247.4563075174. The cubic root of 637434050 is about 860.6206309669.

Adding to 637434050 its reverse (50434736), we get a palindrome (687868786).

The spelling of 637434050 in words is "six hundred thirty-seven million, four hundred thirty-four thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 121 242 275 550 605 1210 3025 6050 105361 210722 526805 1053610 1158971 2317942 2634025 5268050 5794855 11589710 12748681 25497362 28974275 57948550 63743405 127486810 318717025 637434050