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20426123032 = 2371289282973
BaseRepresentation
bin10011000001011111…
…011110011100011000
31221201112100120011021
4103001133132130120
5313313041414112
613214510412224
71322115116050
oct230137363430
957645316137
1020426123032
118732017617
123b60801074
131c06a64643
14dbab2a560
157e838e907
hex4c17de718

20426123032 has 32 divisors (see below), whose sum is σ = 43804375200. Its totient is φ = 8747230464.

The previous prime is 20426123009. The next prime is 20426123057. The reversal of 20426123032 is 23032162402.

It is a junction number, because it is equal to n+sod(n) for n = 20426122988 and 20426123006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69303 + ... + 213670.

It is an arithmetic number, because the mean of its divisors is an integer number (1368886725).

Almost surely, 220426123032 is an apocalyptic number.

It is an amenable number.

20426123032 is an abundant number, since it is smaller than the sum of its proper divisors (23378252168).

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

20426123032 is a wasteful number, since it uses less digits than its factorization.

20426123032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284275 (or 284271 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20426123032 its reverse (23032162402), we get a palindrome (43458285434).

The spelling of 20426123032 in words is "twenty billion, four hundred twenty-six million, one hundred twenty-three thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 1289 2578 5156 9023 10312 18046 36092 72184 282973 565946 1131892 1980811 2263784 3961622 7923244 15846488 364752197 729504394 1459008788 2553265379 2918017576 5106530758 10213061516 20426123032