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55710187 = 134285399
BaseRepresentation
bin1101010010000…
…1000111101011
310212211101000021
43110201013223
5103230211222
65310021311
71244346241
oct324410753
9125741007
1055710187
11294a0985
12167a7837
13b707510
147582791
154d56ac7
hex35211eb

55710187 has 4 divisors (see below), whose sum is σ = 59995600. Its totient is φ = 51424776.

The previous prime is 55710157. The next prime is 55710211. The reversal of 55710187 is 78101755.

55710187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55710187 - 223 = 47321579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55710157) 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 3 ways as a sum of consecutive naturals, for example, 2142687 + ... + 2142712.

It is an arithmetic number, because the mean of its divisors is an integer number (14998900).

Almost surely, 255710187 is an apocalyptic number.

55710187 is a deficient number, since it is larger than the sum of its proper divisors (4285413).

55710187 is a wasteful number, since it uses less digits than its factorization.

55710187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285412.

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 55710187 is about 7463.9257097053. The cubic root of 55710187 is about 381.9251038715.

The spelling of 55710187 in words is "fifty-five million, seven hundred ten thousand, one hundred eighty-seven".

Divisors: 1 13 4285399 55710187