Search a number
-
+
20034070 = 2572971139
BaseRepresentation
bin100110001101…
…1001000010110
31101200211120121
41030123020112
520112042240
61553222154
7332200240
oct114331026
941624517
1020034070
1110343991
12686195a
1341c5aa4
142937090
151b5b04a
hex131b216

20034070 has 64 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 6491520.

The previous prime is 20034061. The next prime is 20034071. The reversal of 20034070 is 7043002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144061 + ... + 144199.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 220034070 is an apocalyptic number.

20034070 is an abundant number, since it is smaller than the sum of its proper divisors (23511530).

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

20034070 is a wasteful number, since it uses less digits than its factorization.

20034070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 20034070 is about 4475.9434759612. The cubic root of 20034070 is about 271.5958079003.

Adding to 20034070 its reverse (7043002), we get a palindrome (27077072).

The spelling of 20034070 in words is "twenty million, thirty-four thousand, seventy".

Divisors: 1 2 5 7 10 14 29 35 58 70 71 139 142 145 203 278 290 355 406 497 695 710 973 994 1015 1390 1946 2030 2059 2485 4031 4118 4865 4970 8062 9730 9869 10295 14413 19738 20155 20590 28217 28826 40310 49345 56434 69083 72065 98690 138166 141085 144130 282170 286201 345415 572402 690830 1431005 2003407 2862010 4006814 10017035 20034070