Search a number
-
+
55231610 = 2577111113
BaseRepresentation
bin1101001010110…
…0010001111010
310211221001112012
43102230101322
5103114402420
65251445522
71240314050
oct322542172
9124831465
1055231610
11291a4365
12165b68a2
13b59a735
14749a1d0
154caedc5
hex34ac47a

55231610 has 32 divisors (see below), whose sum is σ = 115229952. Its totient is φ = 18668160.

The previous prime is 55231601. The next prime is 55231619. The reversal of 55231610 is 1613255.

55231610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55231601) and next prime (55231619).

It is not an unprimeable number, because it can be changed into a prime (55231619) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 587 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (3600936).

Almost surely, 255231610 is an apocalyptic number.

55231610 is an abundant number, since it is smaller than the sum of its proper divisors (59998342).

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

55231610 is a wasteful number, since it uses less digits than its factorization.

55231610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 55231610 is about 7431.7972254361. The cubic root of 55231610 is about 380.8283177883.

Adding to 55231610 its reverse (1613255), we get a palindrome (56844865).

The spelling of 55231610 in words is "fifty-five million, two hundred thirty-one thousand, six hundred ten".

Divisors: 1 2 5 7 10 14 35 70 71 142 355 497 710 994 2485 4970 11113 22226 55565 77791 111130 155582 388955 777910 789023 1578046 3945115 5523161 7890230 11046322 27615805 55231610