Search a number
-
+
302012013223 = 19891671069459
BaseRepresentation
bin1000110010100010101…
…00011001101010100111
31001212112201212220000101
410121101110121222213
514422010033410343
6350424205324531
730551065520164
oct4312124315247
91055481786011
10302012013223
1110709a9a9648
124a647266747
1322630920c8b
141089044706b
157cc9145e4d
hex4651519aa7

302012013223 has 16 divisors (see below), whose sum is σ = 323404704000. Its totient is φ = 281207564352.

The previous prime is 302012013209. The next prime is 302012013241. The reversal of 302012013223 is 322310210203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-302012013223 is a prime.

It is a super-2 number, since 2×3020120132232 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302012013223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302012013923) 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, 252333 + ... + 817126.

It is an arithmetic number, because the mean of its divisors is an integer number (20212794000).

Almost surely, 2302012013223 is an apocalyptic number.

302012013223 is a deficient number, since it is larger than the sum of its proper divisors (21392690777).

302012013223 is a wasteful number, since it uses less digits than its factorization.

302012013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069734.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 302012013223 its reverse (322310210203), we get a palindrome (624322223426).

The spelling of 302012013223 in words is "three hundred two billion, twelve million, thirteen thousand, two hundred twenty-three".

Divisors: 1 19 89 167 1691 3173 14863 282397 1069459 20319721 95181851 178599653 1808455169 3393393407 15895369117 302012013223