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55243160 = 2357197297
BaseRepresentation
bin1101001010111…
…1000110011000
310211221122100222
43102233012120
5103120240120
65252015212
71240362530
oct322570630
9124848328
1055243160
1129202005
1216601508
13b5a2a7b
1474a04c0
154cb3525
hex34af198

55243160 has 32 divisors (see below), whose sum is σ = 142054560. Its totient is φ = 18940416.

The previous prime is 55243151. The next prime is 55243163. The reversal of 55243160 is 6134255.

55243160 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 not an unprimeable number, because it can be changed into a prime (55243163) 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 7 ways as a sum of consecutive naturals, for example, 98369 + ... + 98928.

It is an arithmetic number, because the mean of its divisors is an integer number (4439205).

Almost surely, 255243160 is an apocalyptic number.

It is an amenable number.

55243160 is an abundant number, since it is smaller than the sum of its proper divisors (86811400).

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

55243160 is a wasteful number, since it uses less digits than its factorization.

55243160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197315 (or 197311 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 55243160 is about 7432.5742512268. The cubic root of 55243160 is about 380.8548621318.

The spelling of 55243160 in words is "fifty-five million, two hundred forty-three thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 197297 394594 789188 986485 1381079 1578376 1972970 2762158 3945940 5524316 6905395 7891880 11048632 13810790 27621580 55243160