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19000868803901 = 891447400736821
BaseRepresentation
bin1000101000111111111000…
…00010010001010100111101
32111021110120012211220001222
410110133330002101110331
54442302234403211101
6104224513441043125
74000524146001545
oct424377402212475
974243505756058
1019000868803901
1160662500a73a6
12216a5b46264a5
13a7aa0b00b35a
1449990b370325
1522e3c9a3801b
hex1147fc09153d

19000868803901 has 16 divisors (see below), whose sum is σ = 19232961304320. Its totient is φ = 18769197068160.

The previous prime is 19000868803883. The next prime is 19000868803907. The reversal of 19000868803901 is 10930886800091.

It is a cyclic number.

It is not a de Polignac number, because 19000868803901 - 214 = 19000868787517 is a prime.

It is a super-2 number, since 2×190008688039012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19000868803907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516015071 + ... + 516051891.

It is an arithmetic number, because the mean of its divisors is an integer number (1202060081520).

Almost surely, 219000868803901 is an apocalyptic number.

It is an amenable number.

19000868803901 is a deficient number, since it is larger than the sum of its proper divisors (232092500419).

19000868803901 is a wasteful number, since it uses less digits than its factorization.

19000868803901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42364.

The product of its (nonzero) digits is 746496, while the sum is 53.

The spelling of 19000868803901 in words is "nineteen trillion, eight hundred sixty-eight million, eight hundred three thousand, nine hundred one".

Divisors: 1 89 1447 4007 36821 128783 356623 3277069 5798129 53279987 147541747 516033481 4741918843 13131215483 213492907909 19000868803901