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20190026943 = 3219118070333
BaseRepresentation
bin10010110011011010…
…110101110010111111
31221010002002122012200
4102303122311302333
5312322121330233
613135234202543
71313220253212
oct226332656277
957102078180
1020190026943
118620820089
123ab5723453
131b99b7c708
14d9762d779
157d27a5313
hex4b36b5cbf

20190026943 has 12 divisors (see below), whose sum is σ = 30698286840. Its totient is φ = 12751595856.

The previous prime is 20190026939. The next prime is 20190026947. The reversal of 20190026943 is 34962009102.

It is an interprime number because it is at equal distance from previous prime (20190026939) and next prime (20190026947).

It is not a de Polignac number, because 20190026943 - 22 = 20190026939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20190026898 and 20190026907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20190026947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59034996 + ... + 59035337.

It is an arithmetic number, because the mean of its divisors is an integer number (2558190570).

Almost surely, 220190026943 is an apocalyptic number.

20190026943 is a deficient number, since it is larger than the sum of its proper divisors (10508259897).

20190026943 is a wasteful number, since it uses less digits than its factorization.

20190026943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118070358 (or 118070355 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 20190026943 in words is "twenty billion, one hundred ninety million, twenty-six thousand, nine hundred forty-three".

Divisors: 1 3 9 19 57 171 118070333 354210999 1062632997 2243336327 6730008981 20190026943