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20130230023422 = 237962742134431
BaseRepresentation
bin1001001001110111011110…
…01101011011010011111110
32122021102122100020011002120
410210323233031123103332
510114303202341222142
6110451411111303410
74145234602660311
oct444735715332376
978242570204076
1020130230023422
116461201066172
12231145937ab66
13b30370a253ac
144d84460c2978
1524d977ed47ec
hex124eef35b4fe

20130230023422 has 16 divisors (see below), whose sum is σ = 40260966615552. Its totient is φ = 6709992246360.

The previous prime is 20130230023381. The next prime is 20130230023427. The reversal of 20130230023422 is 22432003203102.

It is a junction number, because it is equal to n+sod(n) for n = 20130230023392 and 20130230023401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130230023427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20589454 + ... + 21544977.

It is an arithmetic number, because the mean of its divisors is an integer number (2516310413472).

Almost surely, 220130230023422 is an apocalyptic number.

20130230023422 is an abundant number, since it is smaller than the sum of its proper divisors (20130736592130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130230023422 is a wasteful number, since it uses less digits than its factorization.

20130230023422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42214063.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20130230023422 its reverse (22432003203102), we get a palindrome (42562233226524).

The spelling of 20130230023422 in words is "twenty trillion, one hundred thirty billion, two hundred thirty million, twenty-three thousand, four hundred twenty-two".

Divisors: 1 2 3 6 79627 159254 238881 477762 42134431 84268862 126403293 252806586 3355038337237 6710076674474 10065115011711 20130230023422