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20120525423 = 1710111718419
BaseRepresentation
bin10010101111010001…
…101101101001101111
31220221020022121001022
4102233101231221233
5312201323303143
613124312404355
71311414433655
oct225721555157
956836277038
1020120525423
11859556a609
123a963a66bb
131b88656a5b
14d8c2dadd5
157cb627268
hex4af46da6f

20120525423 has 8 divisors (see below), whose sum is σ = 21515019120. Its totient is φ = 18749468800.

The previous prime is 20120525401. The next prime is 20120525431. The reversal of 20120525423 is 32452502102.

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 20120525423 - 28 = 20120525167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20120525392 and 20120525401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120525473) 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, 5857493 + ... + 5860926.

It is an arithmetic number, because the mean of its divisors is an integer number (2689377390).

Almost surely, 220120525423 is an apocalyptic number.

20120525423 is a deficient number, since it is larger than the sum of its proper divisors (1394493697).

20120525423 is a wasteful number, since it uses less digits than its factorization.

20120525423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11718537.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20120525423 in words is "twenty billion, one hundred twenty million, five hundred twenty-five thousand, four hundred twenty-three".

Divisors: 1 17 101 1717 11718419 199213123 1183560319 20120525423