Search a number
-
+
42095785 = 547271661
BaseRepresentation
bin1010000010010…
…1010010101001
32221012200120011
42200211102221
541234031120
64102131521
71020544144
oct240452251
987180504
1042095785
1121842206
1212120ba1
13894b764
14583b05b
153a67c5a
hex28254a9

42095785 has 16 divisors (see below), whose sum is σ = 51858432. Its totient is φ = 32788800.

The previous prime is 42095771. The next prime is 42095789. The reversal of 42095785 is 58759024.

It is not a de Polignac number, because 42095785 - 225 = 8541353 is a prime.

It is a super-2 number, since 2×420957852 = 3544110229532450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42095789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63355 + ... + 64015.

It is an arithmetic number, because the mean of its divisors is an integer number (3241152).

Almost surely, 242095785 is an apocalyptic number.

It is an amenable number.

42095785 is a deficient number, since it is larger than the sum of its proper divisors (9762647).

42095785 is a wasteful number, since it uses less digits than its factorization.

42095785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 42095785 is about 6488.1264630092. The cubic root of 42095785 is about 347.8667108564.

The spelling of 42095785 in words is "forty-two million, ninety-five thousand, seven hundred eighty-five".

Divisors: 1 5 47 235 271 661 1355 3305 12737 31067 63685 155335 179131 895655 8419157 42095785