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20130230023430 = 254977194044497
BaseRepresentation
bin1001001001110111011110…
…01101011011010100000110
32122021102122100020011002212
410210323233031123110012
510114303202341222210
6110451411111303422
74145234602660322
oct444735715332406
978242570204085
1020130230023430
11646120106617a
12231145937ab72
13b30370a253b7
144d84460c2982
1524d977ed4805
hex124eef35b506

20130230023430 has 16 divisors (see below), whose sum is σ = 36234495802080. Its totient is φ = 8052073840512.

The previous prime is 20130230023427. The next prime is 20130230023447. The reversal of 20130230023430 is 3432003203102.

It is a junction number, because it is equal to n+sod(n) for n = 20130230023396 and 20130230023405.

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, 2954942 + ... + 6999438.

It is an arithmetic number, because the mean of its divisors is an integer number (2264655987630).

Almost surely, 220130230023430 is an apocalyptic number.

20130230023430 is a deficient number, since it is larger than the sum of its proper divisors (16104265778650).

20130230023430 is a wasteful number, since it uses less digits than its factorization.

20130230023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542223.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20130230023430 its reverse (3432003203102), we get a palindrome (23562233226532).

The spelling of 20130230023430 in words is "twenty trillion, one hundred thirty billion, two hundred thirty million, twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 497719 995438 2488595 4044497 4977190 8088994 20222485 40444970 2013023002343 4026046004686 10065115011715 20130230023430