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424130525 = 52721326633
BaseRepresentation
bin11001010001111…
…011011111011101
31002120002001200222
4121101323133131
51332034134100
6110030331125
713340023100
oct3121733735
91076061628
10424130525
111a84575a5
12ba059aa5
1369b3cb10
1440486737
152737d485
hex1947b7dd

424130525 has 36 divisors (see below), whose sum is σ = 658871892. Its totient is φ = 268450560.

The previous prime is 424130503. The next prime is 424130549. The reversal of 424130525 is 525031424.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 17689 + 424112836 = 133^2 + 20594^2 .

It is not a de Polignac number, because 424130525 - 210 = 424129501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 424130494 and 424130503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2609 + ... + 29241.

It is an arithmetic number, because the mean of its divisors is an integer number (18301997).

Almost surely, 2424130525 is an apocalyptic number.

It is an amenable number.

424130525 is a deficient number, since it is larger than the sum of its proper divisors (234741367).

424130525 is a wasteful number, since it uses less digits than its factorization.

424130525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26670 (or 26658 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 424130525 is about 20594.4294652705. The cubic root of 424130525 is about 751.3342324317.

Adding to 424130525 its reverse (525031424), we get a palindrome (949161949).

The spelling of 424130525 in words is "four hundred twenty-four million, one hundred thirty thousand, five hundred twenty-five".

Divisors: 1 5 7 13 25 35 49 65 91 175 245 325 455 637 1225 2275 3185 15925 26633 133165 186431 346229 665825 932155 1305017 1731145 2423603 4660775 6525085 8655725 12118015 16965221 32625425 60590075 84826105 424130525