Search a number
-
+
57169141 = 137417293
BaseRepresentation
bin1101101000010…
…1010011110101
310222120111022121
43122011103311
5104113403031
65401155541
71262633611
oct332052365
9128514277
1057169141
112a2a8027
121718bbb1
13bac85c3
147842341
155044011
hex36854f5

57169141 has 4 divisors (see below), whose sum is σ = 57586572. Its totient is φ = 56751712.

The previous prime is 57169127. The next prime is 57169187. The reversal of 57169141 is 14196175.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46580625 + 10588516 = 6825^2 + 3254^2 .

It is a cyclic number.

It is not a de Polignac number, because 57169141 - 211 = 57167093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57169097 and 57169106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57169111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208510 + ... + 208783.

It is an arithmetic number, because the mean of its divisors is an integer number (14396643).

Almost surely, 257169141 is an apocalyptic number.

It is an amenable number.

57169141 is a deficient number, since it is larger than the sum of its proper divisors (417431).

57169141 is a wasteful number, since it uses less digits than its factorization.

57169141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417430.

The product of its digits is 7560, while the sum is 34.

The square root of 57169141 is about 7561.0277740529. The cubic root of 57169141 is about 385.2304034940.

The spelling of 57169141 in words is "fifty-seven million, one hundred sixty-nine thousand, one hundred forty-one".

Divisors: 1 137 417293 57169141