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10312104020 = 225515605201
BaseRepresentation
bin10011001101010011…
…00011100001010100
3222121200001011100112
421212221203201110
5132104344312040
64423132102152
7513354303131
oct114651434124
928550034315
1010312104020
114411a06419
121bb9604958
13c845656ca
146db7a7588
154054ad365
hex266a63854

10312104020 has 12 divisors (see below), whose sum is σ = 21655418484. Its totient is φ = 4124841600.

The previous prime is 10312103983. The next prime is 10312104029. The reversal of 10312104020 is 2040121301.

It can be written as a sum of positive squares in 2 ways, for example, as 7802895556 + 2509208464 = 88334^2 + 50092^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10312103986 and 10312104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312104029) 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, 257802581 + ... + 257802620.

It is an arithmetic number, because the mean of its divisors is an integer number (1804618207).

Almost surely, 210312104020 is an apocalyptic number.

10312104020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312104020 is an abundant number, since it is smaller than the sum of its proper divisors (11343314464).

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

10312104020 is a wasteful number, since it uses less digits than its factorization.

10312104020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515605210 (or 515605208 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10312104020 its reverse (2040121301), we get a palindrome (12352225321).

The spelling of 10312104020 in words is "ten billion, three hundred twelve million, one hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 515605201 1031210402 2062420804 2578026005 5156052010 10312104020