Search a number
-
+
20340702 = 2321130039
BaseRepresentation
bin100110110010…
…1111111011110
31102021102012100
41031211333132
520201400302
62003545530
7334615224
oct115457736
942242170
1020340702
11105332a8
12698b2a6
1342a2525
1429b6b14
151bbbd1c
hex1365fde

20340702 has 12 divisors (see below), whose sum is σ = 44071560. Its totient is φ = 6780228.

The previous prime is 20340689. The next prime is 20340709. The reversal of 20340702 is 20704302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1130039 = 20340702 / (2 + 0 + 3 + 4 + 0 + 7 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565002 + ... + 565037.

It is an arithmetic number, because the mean of its divisors is an integer number (3672630).

Almost surely, 220340702 is an apocalyptic number.

20340702 is an abundant number, since it is smaller than the sum of its proper divisors (23730858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20340702 is a wasteful number, since it uses less digits than its factorization.

20340702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130047 (or 1130044 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20340702 is about 4510.0667400827. The cubic root of 20340702 is about 272.9744370864.

The spelling of 20340702 in words is "twenty million, three hundred forty thousand, seven hundred two".

Divisors: 1 2 3 6 9 18 1130039 2260078 3390117 6780234 10170351 20340702