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20004150512 = 2417313234967
BaseRepresentation
bin10010101000010101…
…110001110011110000
31220122010100010200102
4102220111301303300
5311432030304022
613104554211532
71305502321343
oct225025616360
956563303612
1020004150512
1185359043a5
123a63423ba8
131b6a4cbb68
14d7aa8645a
157c12daa92
hex4a8571cf0

20004150512 has 40 divisors (see below), whose sum is σ = 41169213216. Its totient is φ = 9383602176.

The previous prime is 20004150493. The next prime is 20004150533. The reversal of 20004150512 is 21505140002.

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, 32348 + ... + 202619.

Almost surely, 220004150512 is an apocalyptic number.

It is an amenable number.

20004150512 is an abundant number, since it is smaller than the sum of its proper divisors (21165062704).

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

20004150512 is a wasteful number, since it uses less digits than its factorization.

20004150512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235305 (or 235299 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 20004150512 its reverse (21505140002), we get a palindrome (41509290514).

The spelling of 20004150512 in words is "twenty billion, four million, one hundred fifty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 17 34 68 136 272 313 626 1252 2504 5008 5321 10642 21284 42568 85136 234967 469934 939868 1879736 3759472 3994439 7988878 15977756 31955512 63911024 73544671 147089342 294178684 588357368 1176714736 1250259407 2500518814 5001037628 10002075256 20004150512