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20004015005 = 51317219411367
BaseRepresentation
bin10010101000010101…
…010000101110011101
31220122010002020210122
4102220111100232131
5311432011440010
613104551244325
71305501215312
oct225025205635
956563066718
1020004015005
118535821607
123a633796a5
131b6a482290
14d7aa4cd09
157c12b0855
hex4a8550b9d

20004015005 has 96 divisors (see below), whose sum is σ = 29633506560. Its totient is φ = 12840837120.

The previous prime is 20004014999. The next prime is 20004015011. The reversal of 20004015005 is 50051040002.

It is an interprime number because it is at equal distance from previous prime (20004014999) and next prime (20004015011).

It is a de Polignac number, because none of the positive numbers 2k-20004015005 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14632832 + ... + 14634198.

It is an arithmetic number, because the mean of its divisors is an integer number (308682360).

Almost surely, 220004015005 is an apocalyptic number.

It is an amenable number.

20004015005 is a deficient number, since it is larger than the sum of its proper divisors (9629491555).

20004015005 is a wasteful number, since it uses less digits than its factorization.

20004015005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

Adding to 20004015005 its reverse (50051040002), we get a palindrome (70055055007).

The spelling of 20004015005 in words is "twenty billion, four million, fifteen thousand, five".

Divisors: 1 5 13 17 19 41 65 85 95 205 221 247 289 323 533 697 779 1105 1235 1367 1445 1615 2665 3485 3757 3895 4199 5491 6835 9061 10127 11849 13243 17771 18785 20995 23239 25973 27455 45305 50635 56047 59245 66215 71383 88855 116195 129865 154037 172159 225131 280235 302107 337649 356915 395063 441541 728611 770185 860795 952799 1064893 1125655 1510535 1688245 1975315 2207705 2926703 3643055 4763995 5135819 5324465 5740033 7506197 12386387 13843609 14633515 16197583 18103181 25679095 28700165 37530985 61931935 69218045 80987915 90515905 97580561 210568579 235341353 307754077 487902805 1052842895 1176706765 1538770385 4000803001 20004015005