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20025210523 = 314713744139
BaseRepresentation
bin10010101001100110…
…000111011010011011
31220200120222002120211
4102221212013122123
5312002423214043
613111025431551
71306146323653
oct225146073233
956616862524
1020025210523
11854678906a
123a6a49b5b7
131b719938c6
14d7d7a9363
157c309aa9d
hex4a998769b

20025210523 has 8 divisors (see below), whose sum is σ = 21110999040. Its totient is φ = 18966910440.

The previous prime is 20025210509. The next prime is 20025210539. The reversal of 20025210523 is 32501252002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20025210523 - 221 = 20023113371 is a prime.

It is a super-3 number, since 3×200252105233 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20025210494 and 20025210503.

It is not an unprimeable number, because it can be changed into a prime (20025210223) 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, 6870613 + ... + 6873526.

It is an arithmetic number, because the mean of its divisors is an integer number (2638874880).

Almost surely, 220025210523 is an apocalyptic number.

20025210523 is a deficient number, since it is larger than the sum of its proper divisors (1085788517).

20025210523 is a wasteful number, since it uses less digits than its factorization.

20025210523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13744217.

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20025210523 its reverse (32501252002), we get a palindrome (52526462525).

The spelling of 20025210523 in words is "twenty billion, twenty-five million, two hundred ten thousand, five hundred twenty-three".

Divisors: 1 31 47 1457 13744139 426068309 645974533 20025210523