Search a number
-
+
42200311 = 192221069
BaseRepresentation
bin1010000011111…
…0110011110111
32221101222221111
42200332303313
541300402221
64104255451
71021460656
oct240766367
987358844
1042200311
112190379a
1212171587
1389871ca
14586719d
153a88be1
hex283ecf7

42200311 has 4 divisors (see below), whose sum is σ = 44421400. Its totient is φ = 39979224.

The previous prime is 42200309. The next prime is 42200317. The reversal of 42200311 is 11300224.

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

It is a cyclic number.

It is not a de Polignac number, because 42200311 - 21 = 42200309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42200291 and 42200300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200317) 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, 1110516 + ... + 1110553.

It is an arithmetic number, because the mean of its divisors is an integer number (11105350).

Almost surely, 242200311 is an apocalyptic number.

42200311 is a deficient number, since it is larger than the sum of its proper divisors (2221089).

42200311 is a wasteful number, since it uses less digits than its factorization.

42200311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221088.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42200311 is about 6496.1766447658. The cubic root of 42200311 is about 348.1543965219.

Adding to 42200311 its reverse (11300224), we get a palindrome (53500535).

The spelling of 42200311 in words is "forty-two million, two hundred thousand, three hundred eleven".

Divisors: 1 19 2221069 42200311