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8144628 = 223678719
BaseRepresentation
bin11111000100011011110100
3120022210022220
4133010123310
54041112003
6450322340
7126141162
oct37043364
916283286
108144628
1146631a8
1228893b0
1318c220b
141120232
15aad353
hex7c46f4

8144628 has 12 divisors (see below), whose sum is σ = 19004160. Its totient is φ = 2714872.

The previous prime is 8144627. The next prime is 8144639. The reversal of 8144628 is 8264418.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8144627) 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, 339348 + ... + 339371.

It is an arithmetic number, because the mean of its divisors is an integer number (1583680).

Almost surely, 28144628 is an apocalyptic number.

It is an amenable number.

8144628 is an abundant number, since it is smaller than the sum of its proper divisors (10859532).

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

8144628 is a wasteful number, since it uses less digits than its factorization.

8144628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678726 (or 678724 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 8144628 is about 2853.8794648688. The cubic root of 8144628 is about 201.1980424748.

The spelling of 8144628 in words is "eight million, one hundred forty-four thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 678719 1357438 2036157 2714876 4072314 8144628