Search a number
-
+
57107542 = 2193197751
BaseRepresentation
bin1101100111011…
…0010001010110
310222110100211011
43121312101112
5104104420132
65400002434
71262256202
oct331662126
9128410734
1057107542
112a265818
121716041a
13baa655b
147827b02
155030b47
hex3676456

57107542 has 16 divisors (see below), whose sum is σ = 86657472. Its totient is φ = 28224000.

The previous prime is 57107537. The next prime is 57107543. The reversal of 57107542 is 24570175.

It is a super-2 number, since 2×571075422 = 6522542706563528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57107543) 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, 75667 + ... + 76417.

It is an arithmetic number, because the mean of its divisors is an integer number (5416092).

Almost surely, 257107542 is an apocalyptic number.

57107542 is a deficient number, since it is larger than the sum of its proper divisors (29549930).

57107542 is a wasteful number, since it uses less digits than its factorization.

57107542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57107542 is about 7556.9532220333. The cubic root of 57107542 is about 385.0919935339.

The spelling of 57107542 in words is "fifty-seven million, one hundred seven thousand, five hundred forty-two".

Divisors: 1 2 193 197 386 394 751 1502 38021 76042 144943 147947 289886 295894 28553771 57107542