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628413288 = 233131199877
BaseRepresentation
bin100101011101001…
…101001101101000
31121210110200222020
4211131031031220
52241333211123
6142205024440
721400265466
oct4535151550
91553420866
10628413288
112a27a5228
12156555120
13a02665a9
145d661836
153a2817e3
hex2574d368

628413288 has 32 divisors (see below), whose sum is σ = 1583033760. Its totient is φ = 207871040.

The previous prime is 628413287. The next prime is 628413323. The reversal of 628413288 is 882314826.

It is a happy number.

628413288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (628413287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96795 + ... + 103082.

It is an arithmetic number, because the mean of its divisors is an integer number (49469805).

Almost surely, 2628413288 is an apocalyptic number.

It is an amenable number.

628413288 is an abundant number, since it is smaller than the sum of its proper divisors (954620472).

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

628413288 is a wasteful number, since it uses less digits than its factorization.

628413288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200017 (or 200013 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 628413288 is about 25068.1728093613. The cubic root of 628413288 is about 856.5415859679.

The spelling of 628413288 in words is "six hundred twenty-eight million, four hundred thirteen thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 131 262 393 524 786 1048 1572 3144 199877 399754 599631 799508 1199262 1599016 2398524 4797048 26183887 52367774 78551661 104735548 157103322 209471096 314206644 628413288