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6989505472 = 26109211023
BaseRepresentation
bin1101000001001101…
…10110001111000000
3200001002222200000001
412200212312033000
5103303303133342
63113321205344
7335130546655
oct64046661700
920032880001
106989505472
112a67436a04
121430930854
138750a0271
144a43c7c2c
152ad9448b7
hex1a09b63c0

6989505472 has 14 divisors (see below), whose sum is σ = 13869800048. Its totient is φ = 3494752704.

The previous prime is 6989505403. The next prime is 6989505521. The reversal of 6989505472 is 2745059896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54605448 + ... + 54605575.

Almost surely, 26989505472 is an apocalyptic number.

It is an amenable number.

6989505472 is a deficient number, since it is larger than the sum of its proper divisors (6880294576).

6989505472 is a wasteful number, since it uses less digits than its factorization.

6989505472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109211035 (or 109211025 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The square root of 6989505472 is about 83603.2623286915. The cubic root of 6989505472 is about 1911.9747375034.

The spelling of 6989505472 in words is "six billion, nine hundred eighty-nine million, five hundred five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 109211023 218422046 436844092 873688184 1747376368 3494752736 6989505472