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55102344 = 23311208721
BaseRepresentation
bin1101001000110…
…0101110001000
310211200111012120
43102030232020
5103101233334
65245011240
71236235143
oct322145610
9124614176
1055102344
1129116230
1216553b20
13b55394b
14746505a
154c86949
hex348cb88

55102344 has 32 divisors (see below), whose sum is σ = 150279840. Its totient is φ = 16697600.

The previous prime is 55102343. The next prime is 55102357. The reversal of 55102344 is 44320155.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (55102343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104097 + ... + 104624.

It is an arithmetic number, because the mean of its divisors is an integer number (4696245).

Almost surely, 255102344 is an apocalyptic number.

It is an amenable number.

55102344 is an abundant number, since it is smaller than the sum of its proper divisors (95177496).

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

55102344 is a wasteful number, since it uses less digits than its factorization.

55102344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208741 (or 208737 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55102344 is about 7423.0953112566. The cubic root of 55102344 is about 380.5309843806.

Adding to 55102344 its reverse (44320155), we get a palindrome (99422499).

The spelling of 55102344 in words is "fifty-five million, one hundred two thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 208721 417442 626163 834884 1252326 1669768 2295931 2504652 4591862 5009304 6887793 9183724 13775586 18367448 27551172 55102344