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4131969 = 31781019
BaseRepresentation
bin1111110000110010000001
321202220222220
433300302001
52024210334
6224321253
750056362
oct17606201
97686886
104131969
112372456
121473229
13b1896a
14797b69
15569449
hex3f0c81

4131969 has 8 divisors (see below), whose sum is σ = 5833440. Its totient is φ = 2592576.

The previous prime is 4131961. The next prime is 4131971. The reversal of 4131969 is 9691314.

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

It is not a de Polignac number, because 4131969 - 23 = 4131961 is a prime.

It is a super-2 number, since 2×41319692 = 34146335633922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131961) 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, 40459 + ... + 40560.

It is an arithmetic number, because the mean of its divisors is an integer number (729180).

Almost surely, 24131969 is an apocalyptic number.

It is an amenable number.

4131969 is a deficient number, since it is larger than the sum of its proper divisors (1701471).

4131969 is a wasteful number, since it uses less digits than its factorization.

4131969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81039.

The product of its digits is 5832, while the sum is 33.

The square root of 4131969 is about 2032.7245263439. The cubic root of 4131969 is about 160.4669820766.

The spelling of 4131969 in words is "four million, one hundred thirty-one thousand, nine hundred sixty-nine".

Divisors: 1 3 17 51 81019 243057 1377323 4131969