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55102350 = 2352438543
BaseRepresentation
bin1101001000110…
…0101110001110
310211200111012210
43102030232032
5103101233400
65245011250
71236235152
oct322145616
9124614183
1055102350
1129116236
1216553b26
13b553954
147465062
154c86950
hex348cb8e

55102350 has 48 divisors (see below), whose sum is σ = 139848192. Its totient is φ = 14350560.

The previous prime is 55102343. The next prime is 55102357. The reversal of 55102350 is 5320155.

55102350 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 (55102343) and next prime (55102357).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55102357) 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 23 ways as a sum of consecutive naturals, for example, 2179 + ... + 10721.

It is an arithmetic number, because the mean of its divisors is an integer number (2913504).

Almost surely, 255102350 is an apocalyptic number.

55102350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55102350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69924096).

55102350 is an abundant number, since it is smaller than the sum of its proper divisors (84745842).

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

55102350 is a wasteful number, since it uses less digits than its factorization.

55102350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601 (or 8596 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 55102350 is about 7423.0957154007. The cubic root of 55102350 is about 380.5309981924.

The spelling of 55102350 in words is "fifty-five million, one hundred two thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 43 50 75 86 129 150 215 258 430 645 1075 1290 2150 3225 6450 8543 17086 25629 42715 51258 85430 128145 213575 256290 367349 427150 640725 734698 1102047 1281450 1836745 2204094 3673490 5510235 9183725 11020470 18367450 27551175 55102350