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4107981 = 33793613
BaseRepresentation
bin1111101010111011001101
321201201002110
433222323031
52022423411
6224014233
746626423
oct17527315
97651073
104107981
112356429
121461379
13b0aa77
1478d113
155622a6
hex3eaecd

4107981 has 8 divisors (see below), whose sum is σ = 5493280. Its totient is φ = 2730672.

The previous prime is 4107979. The next prime is 4107991. The reversal of 4107981 is 1897014.

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

It is not a de Polignac number, because 4107981 - 21 = 4107979 is a prime.

It is a super-2 number, since 2×41079812 = 33751015792722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4107911) 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, 670 + ... + 2943.

It is an arithmetic number, because the mean of its divisors is an integer number (686660).

Almost surely, 24107981 is an apocalyptic number.

It is an amenable number.

4107981 is a deficient number, since it is larger than the sum of its proper divisors (1385299).

4107981 is a wasteful number, since it uses less digits than its factorization.

4107981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 4107981 is about 2026.8154824749. The cubic root of 4107981 is about 160.1558507458.

The spelling of 4107981 in words is "four million, one hundred seven thousand, nine hundred eighty-one".

Divisors: 1 3 379 1137 3613 10839 1369327 4107981