Search a number
-
+
42752871 = 3273718341
BaseRepresentation
bin1010001100010…
…1101101100111
32222110001220200
42203011231213
541421042441
64124201543
71026251640
oct243055547
988401820
1042752871
1122150957
12123992b3
138b1b875
14596c6c7
153b477b6
hex28c5b67

42752871 has 24 divisors (see below), whose sum is σ = 72487584. Its totient is φ = 23768640.

The previous prime is 42752851. The next prime is 42752903. The reversal of 42752871 is 17825724.

It is not a de Polignac number, because 42752871 - 218 = 42490727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42752851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6840 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (3020316).

Almost surely, 242752871 is an apocalyptic number.

42752871 is a deficient number, since it is larger than the sum of its proper divisors (29734713).

42752871 is a wasteful number, since it uses less digits than its factorization.

42752871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18391 (or 18388 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42752871 is about 6538.5679624823. The cubic root of 42752871 is about 349.6673601499.

The spelling of 42752871 in words is "forty-two million, seven hundred fifty-two thousand, eight hundred seventy-one".

Divisors: 1 3 7 9 21 37 63 111 259 333 777 2331 18341 55023 128387 165069 385161 678617 1155483 2035851 4750319 6107553 14250957 42752871