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20120026026 = 234377984597
BaseRepresentation
bin10010101111001111…
…110011101110101010
31220221012101020000010
4102233033303232222
5312201211313101
613124253552350
71311410254002
oct225717635652
956835336003
1020120026026
118595259391
123a961a56b6
131b88510659
14d8c20b002
157cb5792d6
hex4af3f3baa

20120026026 has 16 divisors (see below), whose sum is σ = 41175867744. Its totient is φ = 6550706064.

The previous prime is 20120026009. The next prime is 20120026033. The reversal of 20120026026 is 62062002102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20120025993 and 20120026011.

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, 38992041 + ... + 38992556.

It is an arithmetic number, because the mean of its divisors is an integer number (2573491734).

Almost surely, 220120026026 is an apocalyptic number.

20120026026 is an abundant number, since it is smaller than the sum of its proper divisors (21055841718).

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

20120026026 is a wasteful number, since it uses less digits than its factorization.

20120026026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77984645.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20120026026 its reverse (62062002102), we get a palindrome (82182028128).

The spelling of 20120026026 in words is "twenty billion, one hundred twenty million, twenty-six thousand, twenty-six".

Divisors: 1 2 3 6 43 86 129 258 77984597 155969194 233953791 467907582 3353337671 6706675342 10060013013 20120026026