Search a number
-
+
30253423330 = 25133711355661
BaseRepresentation
bin11100001011001111…
…101001101011100010
32220002102011010211101
4130023033221223202
5443424334021310
621522003505014
72120464566244
oct341317515342
986072133741
1030253423330
11119152a57a9
125a4398816a
132b11a35a30
14166dd76094
15bc0ed743a
hex70b3e9ae2

30253423330 has 64 divisors (see below), whose sum is σ = 60764201568. Its totient is φ = 10772213760.

The previous prime is 30253423301. The next prime is 30253423331. The reversal of 30253423330 is 3332435203.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 236821321 + 30016602009 = 15389^2 + 173253^2 .

It is not an unprimeable number, because it can be changed into a prime (30253423331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 515700 + ... + 571360.

Almost surely, 230253423330 is an apocalyptic number.

30253423330 is an abundant number, since it is smaller than the sum of its proper divisors (30510778238).

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

30253423330 is a wasteful number, since it uses less digits than its factorization.

30253423330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55831.

The product of its (nonzero) digits is 19440, while the sum is 28.

Adding to 30253423330 its reverse (3332435203), we get a palindrome (33585858533).

The spelling of 30253423330 in words is "thirty billion, two hundred fifty-three million, four hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 37 65 74 113 130 185 226 370 481 565 962 1130 1469 2405 2938 4181 4810 7345 8362 14690 20905 41810 54353 55661 108706 111322 271765 278305 543530 556610 723593 1447186 2059457 3617965 4118914 6289693 7235930 10297285 12579386 20594570 26772941 31448465 53545882 62896930 81766009 133864705 163532018 232718641 267729410 408830045 465437282 817660090 1163593205 2327186410 3025342333 6050684666 15126711665 30253423330