Search a number
-
+
12111142430 = 252352657141
BaseRepresentation
bin10110100011110000…
…10101111000011110
31011021001020210002202
423101320111320132
5144300423024210
65321435451502
7606061004102
oct132170257036
934231223082
1012111142430
115155473622
12241bbb6b92
1311b01a9b8a
1482c6ad902
154ad3c69a5
hex2d1e15e1e

12111142430 has 16 divisors (see below), whose sum is σ = 22747885344. Its totient is φ = 4633828320.

The previous prime is 12111142411. The next prime is 12111142447. The reversal of 12111142430 is 3424111121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26328341 + ... + 26328800.

It is an arithmetic number, because the mean of its divisors is an integer number (1421742834).

Almost surely, 212111142430 is an apocalyptic number.

12111142430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111142430 is a deficient number, since it is larger than the sum of its proper divisors (10636742914).

12111142430 is a wasteful number, since it uses less digits than its factorization.

12111142430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52657171.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12111142430 its reverse (3424111121), we get a palindrome (15535253551).

The spelling of 12111142430 in words is "twelve billion, one hundred eleven million, one hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 52657141 105314282 263285705 526571410 1211114243 2422228486 6055571215 12111142430