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7139514 = 231189919
BaseRepresentation
bin11011001111000010111010
3111102201120110
4123033002322
53311431024
6413005150
7114453624
oct33170272
914381513
107139514
114037028
1224837b6
13162c885
14d3bc14
15960629
hex6cf0ba

7139514 has 8 divisors (see below), whose sum is σ = 14279040. Its totient is φ = 2379836.

The previous prime is 7139513. The next prime is 7139519. The reversal of 7139514 is 4159317.

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

7139514 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7139513) 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, 594954 + ... + 594965.

It is an arithmetic number, because the mean of its divisors is an integer number (1784880).

Almost surely, 27139514 is an apocalyptic number.

7139514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7139514 is a wasteful number, since it uses less digits than its factorization.

7139514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189924.

The product of its digits is 3780, while the sum is 30.

The square root of 7139514 is about 2671.9869011655. The cubic root of 7139514 is about 192.5556279330. Note that the first 3 decimals are identical.

The spelling of 7139514 in words is "seven million, one hundred thirty-nine thousand, five hundred fourteen".

Divisors: 1 2 3 6 1189919 2379838 3569757 7139514