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7061409 = 321746153
BaseRepresentation
bin11010111011111110100001
3111021202102200
4122323332201
53301431114
6411203413
7114010125
oct32737641
914252380
107061409
113a93383
122446569
131603164
14d1b585
15947409
hex6bbfa1

7061409 has 12 divisors (see below), whose sum is σ = 10800036. Its totient is φ = 4430592.

The previous prime is 7061401. The next prime is 7061419. The reversal of 7061409 is 9041607.

7061409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6110784 + 950625 = 2472^2 + 975^2 .

It is not a de Polignac number, because 7061409 - 23 = 7061401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7061401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22924 + ... + 23229.

It is an arithmetic number, because the mean of its divisors is an integer number (900003).

Almost surely, 27061409 is an apocalyptic number.

It is an amenable number.

7061409 is a deficient number, since it is larger than the sum of its proper divisors (3738627).

7061409 is a wasteful number, since it uses less digits than its factorization.

7061409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46176 (or 46173 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 7061409 is about 2657.3311799623. The cubic root of 7061409 is about 191.8508770474.

The spelling of 7061409 in words is "seven million, sixty-one thousand, four hundred nine".

Divisors: 1 3 9 17 51 153 46153 138459 415377 784601 2353803 7061409