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20430102004 = 22132913547813
BaseRepresentation
bin10011000001101110…
…101001110111110100
31221201210211201021121
4103001232221313310
5313320101231004
613215131553324
71322164000414
oct230156516764
957653751247
1020430102004
118734295024
123b61bbb844
131c07828770
14dbb484644
157e88c8854
hex4c1ba9df4

20430102004 has 24 divisors (see below), whose sum is σ = 39830573160. Its totient is φ = 9104129664.

The previous prime is 20430101977. The next prime is 20430102023. The reversal of 20430102004 is 40020103402.

It can be written as a sum of positive squares in 4 ways, for example, as 3335062500 + 17095039504 = 57750^2 + 130748^2 .

It is a congruent number.

It is an unprimeable number.

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, 6772399 + ... + 6775414.

It is an arithmetic number, because the mean of its divisors is an integer number (1659607215).

Almost surely, 220430102004 is an apocalyptic number.

It is an amenable number.

20430102004 is a deficient number, since it is larger than the sum of its proper divisors (19400471156).

20430102004 is a wasteful number, since it uses less digits than its factorization.

20430102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547859 (or 13547857 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20430102004 its reverse (40020103402), we get a palindrome (60450205406).

The spelling of 20430102004 in words is "twenty billion, four hundred thirty million, one hundred two thousand, four".

Divisors: 1 2 4 13 26 29 52 58 116 377 754 1508 13547813 27095626 54191252 176121569 352243138 392886577 704486276 785773154 1571546308 5107525501 10215051002 20430102004