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6989433088 = 28115346831
BaseRepresentation
bin1101000001001101…
…00100100100000000
3200001002211222201011
412200212210210000
5103303243324323
63113315450304
7335130125641
oct64046444400
920032758634
106989433088
112a67397590
1214308b6994
13875076331
144a43a96c8
152ad92d20d
hex1a09a4900

6989433088 has 72 divisors (see below), whose sum is σ = 15507386496. Its totient is φ = 3117004800.

The previous prime is 6989433083. The next prime is 6989433109. The reversal of 6989433088 is 8803349896.

It is not an unprimeable number, because it can be changed into a prime (6989433083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125833 + ... + 172663.

It is an arithmetic number, because the mean of its divisors is an integer number (215380368).

Almost surely, 26989433088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989433088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7753693248).

6989433088 is an abundant number, since it is smaller than the sum of its proper divisors (8517953408).

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

6989433088 is a wasteful number, since it uses less digits than its factorization.

6989433088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46911 (or 46897 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 58.

The square root of 6989433088 is about 83602.8294258035. The cubic root of 6989433088 is about 1911.9681372817.

The spelling of 6989433088 in words is "six billion, nine hundred eighty-nine million, four hundred thirty-three thousand, eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 53 64 88 106 128 176 212 256 352 424 583 704 848 1166 1408 1696 2332 2816 3392 4664 6784 9328 13568 18656 37312 46831 74624 93662 149248 187324 374648 515141 749296 1030282 1498592 2060564 2482043 2997184 4121128 4964086 5994368 8242256 9928172 11988736 16484512 19856344 27302473 32969024 39712688 54604946 65938048 79425376 109209892 131876096 158850752 218419784 317701504 436839568 635403008 873679136 1747358272 3494716544 6989433088