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20012200425 = 3252712706159
BaseRepresentation
bin10010101000110100…
…011111000111101001
31220122200111010002100
4102220310133013221
5311441110403200
613105442524013
71305630616440
oct225064370751
956580433070
1020012200425
11853a402418
123a66066609
131b6c089c19
14d7bb7dd57
157c1d7ad00
hex4a8d1f1e9

20012200425 has 36 divisors (see below), whose sum is σ = 40964659840. Its totient is φ = 9148433760.

The previous prime is 20012200349. The next prime is 20012200427. The reversal of 20012200425 is 52400221002.

20012200425 is a `hidden beast` number, since 20 + 0 + 1 + 220 + 0 + 425 = 666.

It is not a de Polignac number, because 20012200425 - 29 = 20012199913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012200398 and 20012200407.

It is not an unprimeable number, because it can be changed into a prime (20012200427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6351505 + ... + 6354654.

Almost surely, 220012200425 is an apocalyptic number.

20012200425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20012200425 is an abundant number, since it is smaller than the sum of its proper divisors (20952459415).

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

20012200425 is a wasteful number, since it uses less digits than its factorization.

20012200425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12706182 (or 12706174 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 20012200425 its reverse (52400221002), we get a palindrome (72412421427).

The spelling of 20012200425 in words is "twenty billion, twelve million, two hundred thousand, four hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 105 175 225 315 525 1575 12706159 38118477 63530795 88943113 114355431 190592385 266829339 317653975 444715565 571777155 800488017 952961925 1334146695 2223577825 2858885775 4002440085 6670733475 20012200425