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20000231013015 = 3251160296701693
BaseRepresentation
bin1001000110000101010101…
…01010100011101010010111
32121211000002111011011221100
410203002222222203222113
510110140433114404030
6110311551305321143
74132653240424131
oct443025252435227
977730074134840
1020000231013015
116411061002590
1222b0218a961b3
13b21024109126
144d2032bd4051
1524a3ba2b9360
hex1230aaaa3a97

20000231013015 has 48 divisors (see below), whose sum is σ = 37824897071520. Its totient is φ = 9695471850240.

The previous prime is 20000231012999. The next prime is 20000231013157. The reversal of 20000231013015 is 51031013200002.

It is not a de Polignac number, because 20000231013015 - 24 = 20000231012999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366492 + ... + 6335201.

It is an arithmetic number, because the mean of its divisors is an integer number (788018688990).

Almost surely, 220000231013015 is an apocalyptic number.

20000231013015 is a deficient number, since it is larger than the sum of its proper divisors (17824666058505).

20000231013015 is a wasteful number, since it uses less digits than its factorization.

20000231013015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707744 (or 6707741 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 20000231013015 its reverse (51031013200002), we get a palindrome (71031244213017).

The spelling of 20000231013015 in words is "twenty trillion, two hundred thirty-one million, thirteen thousand, fifteen".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 6029 18087 30145 54261 66319 90435 198957 271305 331595 596871 994785 2984355 6701693 20105079 33508465 60315237 73718623 100525395 221155869 301576185 368593115 663467607 1105779345 3317338035 40404507097 121213521291 202022535485 363640563873 444449578067 606067606455 1333348734201 1818202819365 2222247890335 4000046202603 6666743671005 20000231013015