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20102432324 = 2213386585237
BaseRepresentation
bin10010101110001100…
…101100011001000100
31220212222021100222112
4102232030230121010
5312132210313244
613122424520152
71311104566262
oct225614543104
956788240875
1020102432324
118586331a37
123a90320058
131b84990590
14d89b4b432
157c9c5139e
hex4ae32c644

20102432324 has 12 divisors (see below), whose sum is σ = 37885353324. Its totient is φ = 9278045664.

The previous prime is 20102432299. The next prime is 20102432327. The reversal of 20102432324 is 42323420102.

It can be written as a sum of positive squares in 2 ways, for example, as 13007402500 + 7095029824 = 114050^2 + 84232^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20102432324.

It is not an unprimeable number, because it can be changed into a prime (20102432327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193292567 + ... + 193292670.

It is an arithmetic number, because the mean of its divisors is an integer number (3157112777).

Almost surely, 220102432324 is an apocalyptic number.

It is an amenable number.

20102432324 is a deficient number, since it is larger than the sum of its proper divisors (17782921000).

20102432324 is a wasteful number, since it uses less digits than its factorization.

20102432324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386585254 (or 386585252 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20102432324 its reverse (42323420102), we get a palindrome (62425852426).

The spelling of 20102432324 in words is "twenty billion, one hundred two million, four hundred thirty-two thousand, three hundred twenty-four".

Divisors: 1 2 4 13 26 52 386585237 773170474 1546340948 5025608081 10051216162 20102432324