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20000404312 = 2371381258617
BaseRepresentation
bin10010101000000111…
…011111001101011000
31220121212021210212021
4102220013133031120
5311430100414222
613104342024224
71305425426440
oct225007371530
956555253767
1020000404312
118533785869
123a62118074
131b697b9985
14d7a38d120
157c0ceaac7
hex4a81df358

20000404312 has 32 divisors (see below), whose sum is σ = 42889209120. Its totient is φ = 8565361920.

The previous prime is 20000404297. The next prime is 20000404337. The reversal of 20000404312 is 21340400002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51973 + ... + 206644.

It is an arithmetic number, because the mean of its divisors is an integer number (1340287785).

Almost surely, 220000404312 is an apocalyptic number.

It is an amenable number.

20000404312 is an abundant number, since it is smaller than the sum of its proper divisors (22888804808).

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

20000404312 is a wasteful number, since it uses less digits than its factorization.

20000404312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260011 (or 260007 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20000404312 its reverse (21340400002), we get a palindrome (41340804314).

The spelling of 20000404312 in words is "twenty billion, four hundred four thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 1381 2762 5524 9667 11048 19334 38668 77336 258617 517234 1034468 1810319 2068936 3620638 7241276 14482552 357150077 714300154 1428600308 2500050539 2857200616 5000101078 10000202156 20000404312