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20020101112 = 2311227501149
BaseRepresentation
bin10010101001010010…
…100111111111111000
31220200020100111210101
4102221102213333320
5312000121213422
613110324125144
71306055023504
oct225122477770
956606314711
1020020101112
118543909310
123a688367b4
131b708c509b
14d7cc39304
157c28dbc27
hex4a94a7ff8

20020101112 has 16 divisors (see below), whose sum is σ = 40950207000. Its totient is φ = 9100045920.

The previous prime is 20020101107. The next prime is 20020101113. The reversal of 20020101112 is 21110102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020101113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113750487 + ... + 113750662.

Almost surely, 220020101112 is an apocalyptic number.

20020101112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20020101112 is an abundant number, since it is smaller than the sum of its proper divisors (20930105888).

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

20020101112 is a wasteful number, since it uses less digits than its factorization.

20020101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227501166 (or 227501162 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20020101112 its reverse (21110102002), we get a palindrome (41130203114).

The spelling of 20020101112 in words is "twenty billion, twenty million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 227501149 455002298 910004596 1820009192 2502512639 5005025278 10010050556 20020101112