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6981601934 = 24147238543
BaseRepresentation
bin1101000000010001…
…01100101010001110
3200000120010010101102
412200020230222032
5103244242230214
63112435543102
7335003431406
oct64010545216
920016103342
106981601934
112a62a2895a
12142a15aa92
13873563a08
144a332b806
152acdd2bde
hex1a022ca8e

6981601934 has 24 divisors (see below), whose sum is σ = 10961219808. Its totient is φ = 3333112160.

The previous prime is 6981601931. The next prime is 6981601969. The reversal of 6981601934 is 4391061896.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981601931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161867 + ... + 200409.

It is an arithmetic number, because the mean of its divisors is an integer number (456717492).

Almost surely, 26981601934 is an apocalyptic number.

6981601934 is a deficient number, since it is larger than the sum of its proper divisors (3979617874).

6981601934 is a wasteful number, since it uses less digits than its factorization.

6981601934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38680 (or 38633 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 6981601934 is about 83555.9808391955. The cubic root of 6981601934 is about 1911.2537964454.

The spelling of 6981601934 in words is "six billion, nine hundred eighty-one million, six hundred one thousand, nine hundred thirty-four".

Divisors: 1 2 41 47 82 94 1927 2209 3854 4418 38543 77086 90569 181138 1580263 1811521 3160526 3623042 74272361 85141487 148544722 170282974 3490800967 6981601934