Search a number
-
+
57002149 = 3118110159
BaseRepresentation
bin1101100101110…
…0100010100101
310222021000020201
43121130202211
5104043032044
65353430501
71261340011
oct331344245
9128230221
1057002149
112a1a3616
121710b431
13ba6a5a9
1477db541
15500e7d4
hex365c8a5

57002149 has 8 divisors (see below), whose sum is σ = 59171840. Its totient is φ = 54853200.

The previous prime is 57002131. The next prime is 57002167. The reversal of 57002149 is 94120075.

It is a happy number.

57002149 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 (57002131) and next prime (57002167).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57002149 - 225 = 23447717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57002129) 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, 532 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (7396480).

Almost surely, 257002149 is an apocalyptic number.

It is an amenable number.

57002149 is a deficient number, since it is larger than the sum of its proper divisors (2169691).

57002149 is a wasteful number, since it uses less digits than its factorization.

57002149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 57002149 is about 7549.9767549311. The cubic root of 57002149 is about 384.8549495750.

The spelling of 57002149 in words is "fifty-seven million, two thousand, one hundred forty-nine".

Divisors: 1 31 181 5611 10159 314929 1838779 57002149