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7140629 = 17420037
BaseRepresentation
bin11011001111010100010101
3111102210002202
4123033110111
53312000004
6413014245
7114460106
oct33172425
914383082
107140629
114037951
122484385
131630232
14d3c3ad
15960b1e
hex6cf515

7140629 has 4 divisors (see below), whose sum is σ = 7560684. Its totient is φ = 6720576.

The previous prime is 7140611. The next prime is 7140643. The reversal of 7140629 is 9260417.

7140629 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4401604 + 2739025 = 2098^2 + 1655^2 .

It is not a de Polignac number, because 7140629 - 216 = 7075093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210002 + ... + 210035.

It is an arithmetic number, because the mean of its divisors is an integer number (1890171).

Almost surely, 27140629 is an apocalyptic number.

It is an amenable number.

7140629 is a deficient number, since it is larger than the sum of its proper divisors (420055).

7140629 is a wasteful number, since it uses less digits than its factorization.

7140629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420054.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7140629 is about 2672.1955392523. The cubic root of 7140629 is about 192.5656514140.

The spelling of 7140629 in words is "seven million, one hundred forty thousand, six hundred twenty-nine".

Divisors: 1 17 420037 7140629