Search a number
-
+
57204101 = 972772129
BaseRepresentation
bin1101101000110…
…1110110000101
310222122021021102
43122031312011
5104121012401
65402025445
71263140543
oct332156605
9128567242
1057204101
112a321319
12171a8285
13bb0b4a6
147850d93
15504e56b
hex368dd85

57204101 has 8 divisors (see below), whose sum is σ = 58029720. Its totient is φ = 56383488.

The previous prime is 57204089. The next prime is 57204157. The reversal of 57204101 is 10140275.

It can be written as a sum of positive squares in 4 ways, for example, as 201601 + 57002500 = 449^2 + 7550^2 .

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 57204101 - 214 = 57187717 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 (57204401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25805 + ... + 27933.

It is an arithmetic number, because the mean of its divisors is an integer number (7253715).

Almost surely, 257204101 is an apocalyptic number.

It is an amenable number.

57204101 is a deficient number, since it is larger than the sum of its proper divisors (825619).

57204101 is a wasteful number, since it uses less digits than its factorization.

57204101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 57204101 is about 7563.3392757432. The cubic root of 57204101 is about 385.3089126942.

Adding to 57204101 its reverse (10140275), we get a palindrome (67344376).

The spelling of 57204101 in words is "fifty-seven million, two hundred four thousand, one hundred one".

Divisors: 1 97 277 2129 26869 206513 589733 57204101