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23230233013 = 13231313111907
BaseRepresentation
bin10101101000101000…
…010011100110110101
32012221221210002220111
4111220220103212311
5340033414424023
614401040303021
71451444502601
oct255050234665
965857702814
1023230233013
119940951989
124603911a71
1322629a0510
1411a5300501
1590e63c00d
hex568a139b5

23230233013 has 32 divisors (see below), whose sum is σ = 26402568192. Its totient is φ = 20278315200.

The previous prime is 23230232969. The next prime is 23230233023. The reversal of 23230233013 is 31033203232.

It is a de Polignac number, because none of the positive numbers 2k-23230233013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230233023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12180606 + ... + 12182512.

It is an arithmetic number, because the mean of its divisors is an integer number (825080256).

Almost surely, 223230233013 is an apocalyptic number.

23230233013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23230233013 is a deficient number, since it is larger than the sum of its proper divisors (3172335179).

23230233013 is a wasteful number, since it uses less digits than its factorization.

23230233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 23230233013 its reverse (31033203232), we get a palindrome (54263436245).

The spelling of 23230233013 in words is "twenty-three billion, two hundred thirty million, two hundred thirty-three thousand, thirteen".

Divisors: 1 13 23 131 299 311 1703 1907 3013 4043 7153 24791 39169 40741 43861 92989 249817 529633 570193 593077 937043 3247621 5745791 7710001 12181559 13640771 74695283 77693087 177330023 1010010131 1786941001 23230233013