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6989744374 = 28773985031
BaseRepresentation
bin1101000001001111…
…10000100011110110
3200001010102210201021
412200213300203312
5103303333304444
63113330251354
7335132563324
oct64047604366
920033383637
106989744374
112a6758a448
121430a26b5a
13875154c22
144a444ad14
152ad990584
hex1a09f08f6

6989744374 has 8 divisors (see below), whose sum is σ = 10496574288. Its totient is φ = 3490886280.

The previous prime is 6989744371. The next prime is 6989744389. The reversal of 6989744374 is 4734479896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989744371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1990762 + ... + 1994269.

It is an arithmetic number, because the mean of its divisors is an integer number (1312071786).

Almost surely, 26989744374 is an apocalyptic number.

6989744374 is a deficient number, since it is larger than the sum of its proper divisors (3506829914).

6989744374 is a wasteful number, since it uses less digits than its factorization.

6989744374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985910.

The product of its digits is 36578304, while the sum is 61.

The square root of 6989744374 is about 83604.6911004401. The cubic root of 6989744374 is about 1911.9965210849.

The spelling of 6989744374 in words is "six billion, nine hundred eighty-nine million, seven hundred forty-four thousand, three hundred seventy-four".

Divisors: 1 2 877 1754 3985031 7970062 3494872187 6989744374