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7144148 = 2211179551
BaseRepresentation
bin11011010000001011010100
3111102221221002
4123100023110
53312103043
6413042432
7114503264
oct33201324
914387832
107144148
11403a560
122486418
131631a0b
14d3d7a4
15961bb8
hex6d02d4

7144148 has 24 divisors (see below), whose sum is σ = 14442624. Its totient is φ = 3056000.

The previous prime is 7144129. The next prime is 7144153. The reversal of 7144148 is 8414417.

It is a self number, because there is not a number n which added to its sum of digits gives 7144148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4028 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (601776).

Almost surely, 27144148 is an apocalyptic number.

It is an amenable number.

7144148 is an abundant number, since it is smaller than the sum of its proper divisors (7298476).

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

7144148 is a wasteful number, since it uses less digits than its factorization.

7144148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583 (or 9581 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 7144148 is about 2672.8539054726. The cubic root of 7144148 is about 192.5972792179.

The spelling of 7144148 in words is "seven million, one hundred forty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 9551 19102 38204 105061 162367 210122 324734 420244 649468 1786037 3572074 7144148