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4069531 = 73107521
BaseRepresentation
bin1111100001100010011011
321122202100101
433201202123
52020211111
6223120231
746406344
oct17414233
97582311
104069531
11232a554
121443077
13ac640b
1477d0cb
15555bc1
hex3e189b

4069531 has 8 divisors (see below), whose sum is σ = 4171824. Its totient is φ = 3968640.

The previous prime is 4069529. The next prime is 4069543. The reversal of 4069531 is 1359604.

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

It is a cyclic number.

It is not a de Polignac number, because 4069531 - 21 = 4069529 is a prime.

It is a super-2 number, since 2×40695312 = 33122165119922, which contains 22 as substring.

It is a Duffinian number.

4069531 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4069531.

It is not an unprimeable number, because it can be changed into a prime (4069501) 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, 7551 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (521478).

Almost surely, 24069531 is an apocalyptic number.

4069531 is a deficient number, since it is larger than the sum of its proper divisors (102293).

4069531 is a wasteful number, since it uses less digits than its factorization.

4069531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 4069531 is about 2017.3078594999. The cubic root of 4069531 is about 159.6546064948.

The spelling of 4069531 in words is "four million, sixty-nine thousand, five hundred thirty-one".

Divisors: 1 73 107 521 7811 38033 55747 4069531