Search a number
-
+
420111310 = 251716315161
BaseRepresentation
bin11001000010100…
…110001111001110
31002021111212101011
4121002212033032
51330022030220
6105404235434
713260613213
oct3102461716
91067455334
10420111310
111a6161933
12b883bb7a
1369063598
143db1bb0a
1526d3765a
hex190a63ce

420111310 has 32 divisors (see below), whose sum is σ = 805648032. Its totient is φ = 157178880.

The previous prime is 420111281. The next prime is 420111319. The reversal of 420111310 is 13111024.

It is a super-2 number, since 2×4201113102 = 352987025579832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420111319) 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, 20130 + ... + 35290.

It is an arithmetic number, because the mean of its divisors is an integer number (25176501).

Almost surely, 2420111310 is an apocalyptic number.

420111310 is a deficient number, since it is larger than the sum of its proper divisors (385536722).

420111310 is a wasteful number, since it uses less digits than its factorization.

420111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15348.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 420111310 is about 20496.6170379407. The cubic root of 420111310 is about 748.9533905279.

Adding to 420111310 its reverse (13111024), we get a palindrome (433222334).

The spelling of 420111310 in words is "four hundred twenty million, one hundred eleven thousand, three hundred ten".

Divisors: 1 2 5 10 17 34 85 163 170 326 815 1630 2771 5542 13855 15161 27710 30322 75805 151610 257737 515474 1288685 2471243 2577370 4942486 12356215 24712430 42011131 84022262 210055655 420111310