Search a number
-
+
12103042430 = 256598212237
BaseRepresentation
bin10110100010110010…
…11100010101111110
31011020111000020222202
423101121130111332
5144241334324210
65320550111502
7605632106663
oct132131342576
934214006882
1012103042430
115150940a06
12241934b592
1311ab60208b
1482b5a1a6a
154ac8269a5
hex2d165c57e

12103042430 has 32 divisors (see below), whose sum is σ = 21854875680. Its totient is φ = 4825824640.

The previous prime is 12103042397. The next prime is 12103042433. The reversal of 12103042430 is 3424030121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103042433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5409272 + ... + 5411508.

It is an arithmetic number, because the mean of its divisors is an integer number (682964865).

Almost surely, 212103042430 is an apocalyptic number.

12103042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12103042430 is a deficient number, since it is larger than the sum of its proper divisors (9751833250).

12103042430 is a wasteful number, since it uses less digits than its factorization.

12103042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12103042430 its reverse (3424030121), we get a palindrome (15527072551).

The spelling of 12103042430 in words is "twelve billion, one hundred three million, forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 659 821 1318 1642 2237 3295 4105 4474 6590 8210 11185 22370 541039 1082078 1474183 1836577 2705195 2948366 3673154 5410390 7370915 9182885 14741830 18365770 1210304243 2420608486 6051521215 12103042430