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55324430 = 2572234909
BaseRepresentation
bin1101001100001…
…0111100001110
310212002202211222
43103002330032
5103130340210
65253443342
71241151500
oct323027416
9125082758
1055324430
1129258077
1216640552
13b600a65
1474c1d70
154ccc655
hex34c2f0e

55324430 has 48 divisors (see below), whose sum is σ = 120903840. Its totient is φ = 18139968.

The previous prime is 55324427. The next prime is 55324441. The reversal of 55324430 is 3442355.

55324430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55324430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8816 + ... + 13724.

It is an arithmetic number, because the mean of its divisors is an integer number (2518830).

Almost surely, 255324430 is an apocalyptic number.

55324430 is an abundant number, since it is smaller than the sum of its proper divisors (65579410).

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

55324430 is a wasteful number, since it uses less digits than its factorization.

55324430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953 (or 4946 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 55324430 is about 7438.0393922054. The cubic root of 55324430 is about 381.0415332590.

Adding to 55324430 its reverse (3442355), we get a palindrome (58766785).

The spelling of 55324430 in words is "fifty-five million, three hundred twenty-four thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 49 70 98 115 161 230 245 322 490 805 1127 1610 2254 4909 5635 9818 11270 24545 34363 49090 68726 112907 171815 225814 240541 343630 481082 564535 790349 1129070 1202705 1580698 2405410 3951745 5532443 7903490 11064886 27662215 55324430