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33144124420 = 22511496930319
BaseRepresentation
bin11110110111100010…
…110011010000000100
310011112212111222020201
4132313202303100010
51020334343440140
623120505340244
72252225260231
oct366742632004
9104485458221
1033144124420
1113068aa3270
12650ba97684
13318289c054
141865c4a788
15cdeb8b49a
hex7b78b3404

33144124420 has 48 divisors (see below), whose sum is σ = 75947961600. Its totient is φ = 12049585920.

The previous prime is 33144124379. The next prime is 33144124421. The reversal of 33144124420 is 2442144133.

It is not an unprimeable number, because it can be changed into a prime (33144124421) 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, 1078021 + ... + 1108339.

It is an arithmetic number, because the mean of its divisors is an integer number (1582249200).

Almost surely, 233144124420 is an apocalyptic number.

It is an amenable number.

33144124420 is an abundant number, since it is smaller than the sum of its proper divisors (42803837180).

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

33144124420 is a wasteful number, since it uses less digits than its factorization.

33144124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35308 (or 35306 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 33144124420 its reverse (2442144133), we get a palindrome (35586268553).

The spelling of 33144124420 in words is "thirty-three billion, one hundred forty-four million, one hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 4969 9938 19876 24845 30319 49690 54659 60638 99380 109318 121276 151595 218636 273295 303190 333509 546590 606380 667018 1093180 1334036 1667545 3335090 6670180 150655111 301310222 602620444 753275555 1506551110 1657206221 3013102220 3314412442 6628824884 8286031105 16572062210 33144124420