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6989876485 = 517671912239
BaseRepresentation
bin1101000001010000…
…10000110100000101
3200001010200111221021
412200220100310011
5103303402021420
63113333151141
7335133653434
oct64050206405
920033614837
106989876485
112a6766a729
121430a8b4b1
138751a00b7
144a448311b
152ad9b97aa
hex1a0a10d05

6989876485 has 16 divisors (see below), whose sum is σ = 8883302400. Its totient is φ = 5261752576.

The previous prime is 6989876437. The next prime is 6989876489. The reversal of 6989876485 is 5846789896.

It is a cyclic number.

It is not a de Polignac number, because 6989876485 - 215 = 6989843717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989876489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564996 + ... + 577234.

It is an arithmetic number, because the mean of its divisors is an integer number (555206400).

Almost surely, 26989876485 is an apocalyptic number.

It is an amenable number.

6989876485 is a deficient number, since it is larger than the sum of its proper divisors (1893425915).

6989876485 is a wasteful number, since it uses less digits than its factorization.

6989876485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980.

The product of its digits is 209018880, while the sum is 70.

The square root of 6989876485 is about 83605.4811899316. The cubic root of 6989876485 is about 1912.0085670276.

The spelling of 6989876485 in words is "six billion, nine hundred eighty-nine million, eight hundred seventy-six thousand, four hundred eighty-five".

Divisors: 1 5 17 85 6719 12239 33595 61195 114223 208063 571115 1040315 82233841 411169205 1397975297 6989876485