Search a number
-
+
55303630 = 255530363
BaseRepresentation
bin1101001011110…
…1110111001110
310212001201022121
43102331313032
5103124204010
65253203154
71241034034
oct322756716
9125051277
1055303630
1129243488
12166304ba
13b5c4455
1474b8554
154cc63da
hex34bddce

55303630 has 8 divisors (see below), whose sum is σ = 99546552. Its totient is φ = 22121448.

The previous prime is 55303627. The next prime is 55303639. The reversal of 55303630 is 3630355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55303595 and 55303604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55303639) 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 3 ways as a sum of consecutive naturals, for example, 2765172 + ... + 2765191.

It is an arithmetic number, because the mean of its divisors is an integer number (12443319).

Almost surely, 255303630 is an apocalyptic number.

55303630 is a deficient number, since it is larger than the sum of its proper divisors (44242922).

55303630 is a wasteful number, since it uses less digits than its factorization.

55303630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530370.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 55303630 is about 7436.6410428365. The cubic root of 55303630 is about 380.9937746266.

Adding to 55303630 its reverse (3630355), we get a palindrome (58933985).

The spelling of 55303630 in words is "fifty-five million, three hundred three thousand, six hundred thirty".

Divisors: 1 2 5 10 5530363 11060726 27651815 55303630