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55130300 = 22524312821
BaseRepresentation
bin1101001001001…
…1100010111100
310211201220112222
43102103202330
5103103132200
65245344512
71236412511
oct322234274
9124656488
1055130300
1129135235
1216568138
13b5635a4
147471308
154c8ed85
hex34938bc

55130300 has 36 divisors (see below), whose sum is σ = 122424456. Its totient is φ = 21537600.

The previous prime is 55130279. The next prime is 55130329. The reversal of 55130300 is 303155.

55130300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 2111 + ... + 10710.

Almost surely, 255130300 is an apocalyptic number.

55130300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55130300 is an abundant number, since it is smaller than the sum of its proper divisors (67294156).

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

55130300 is a wasteful number, since it uses less digits than its factorization.

55130300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878 (or 12871 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 55130300 is about 7424.9781144459. The cubic root of 55130300 is about 380.5953272310.

Adding to 55130300 its reverse (303155), we get a palindrome (55433455).

The spelling of 55130300 in words is "fifty-five million, one hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 430 860 1075 2150 4300 12821 25642 51284 64105 128210 256420 320525 551303 641050 1102606 1282100 2205212 2756515 5513030 11026060 13782575 27565150 55130300