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6989473452 = 2231361734497
BaseRepresentation
bin1101000001001101…
…01110011010101100
3200001002221001002010
412200212232122230
5103303301122302
63113320401220
7335130354423
oct64046563254
920032831063
106989473452
112a67414945
121430916210
1387508b810
144a43ba2ba
152ad93a16c
hex1a09ae6ac

6989473452 has 48 divisors (see below), whose sum is σ = 17851239392. Its totient is φ = 2115348480.

The previous prime is 6989473441. The next prime is 6989473453. The reversal of 6989473452 is 2543749896.

It is a junction number, because it is equal to n+sod(n) for n = 6989473392 and 6989473401.

It is not an unprimeable number, because it can be changed into a prime (6989473453) 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, 357733 + ... + 376764.

Almost surely, 26989473452 is an apocalyptic number.

It is an amenable number.

6989473452 is an abundant number, since it is smaller than the sum of its proper divisors (10861765940).

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

6989473452 is a wasteful number, since it uses less digits than its factorization.

6989473452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734578 (or 734576 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The square root of 6989473452 is about 83603.0708287680. The cubic root of 6989473452 is about 1911.9718178155.

The spelling of 6989473452 in words is "six billion, nine hundred eighty-nine million, four hundred seventy-three thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 61 78 122 156 183 244 366 732 793 1586 2379 3172 4758 9516 734497 1468994 2203491 2937988 4406982 8813964 9548461 19096922 28645383 38193844 44804317 57290766 89608634 114581532 134412951 179217268 268825902 537651804 582456121 1164912242 1747368363 2329824484 3494736726 6989473452