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20120130443404 = 2223404954012613
BaseRepresentation
bin1001001001100100101010…
…01110100101100010001100
32122020110120111002022212101
410210302111032211202030
510114122011343142104
6110443021010244444
74144426405652515
oct444622516454214
978213514068771
1020120130443404
116457999117222
12230b4bab86724
13b2c421510644
144d7b68a3ba0c
1524d5865065a4
hex124c953a588c

20120130443404 has 24 divisors (see below), whose sum is σ = 36750182565600. Its totient is φ = 9620294348544.

The previous prime is 20120130443401. The next prime is 20120130443423. The reversal of 20120130443404 is 40434403102102.

It is not an unprimeable number, because it can be changed into a prime (20120130443401) 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 7 ways as a sum of consecutive naturals, for example, 26633799 + ... + 27378814.

It is an arithmetic number, because the mean of its divisors is an integer number (1531257606900).

Almost surely, 220120130443404 is an apocalyptic number.

It is an amenable number.

20120130443404 is a deficient number, since it is larger than the sum of its proper divisors (16630052122196).

20120130443404 is a wasteful number, since it uses less digits than its factorization.

20120130443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54016689 (or 54016687 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20120130443404 its reverse (40434403102102), we get a palindrome (60554533545506).

The spelling of 20120130443404 in words is "twenty trillion, one hundred twenty billion, one hundred thirty million, four hundred forty-three thousand, four hundred four".

Divisors: 1 2 4 23 46 92 4049 8098 16196 93127 186254 372508 54012613 108025226 216050452 1242290099 2484580198 4969160396 218697070037 437394140074 874788280148 5030032610851 10060065221702 20120130443404