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4071049 = 29140381
BaseRepresentation
bin1111100001111010001001
321122211102121
433201322021
52020233144
6223131241
746413643
oct17417211
97584377
104071049
112330704
121443b21
13ac7008
1477d893
15556384
hex3e1e89

4071049 has 4 divisors (see below), whose sum is σ = 4211460. Its totient is φ = 3930640.

The previous prime is 4071047. The next prime is 4071061. The reversal of 4071049 is 9401704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2999824 + 1071225 = 1732^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 4071049 - 21 = 4071047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4071043) 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, 70162 + ... + 70219.

It is an arithmetic number, because the mean of its divisors is an integer number (1052865).

Almost surely, 24071049 is an apocalyptic number.

It is an amenable number.

4071049 is a deficient number, since it is larger than the sum of its proper divisors (140411).

4071049 is a wasteful number, since it uses less digits than its factorization.

4071049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140410.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 4071049 is about 2017.6840684309. The cubic root of 4071049 is about 159.6744552656.

The spelling of 4071049 in words is "four million, seventy-one thousand, forty-nine".

Divisors: 1 29 140381 4071049