Search a number
-
+
628413253 = 1376163521
BaseRepresentation
bin100101011101001…
…101001101000101
31121210110200220221
4211131031031011
52241333211003
6142205024341
721400265416
oct4535151505
91553420827
10628413253
112a27a51a6
121565550b1
13a0266580
145d66180d
153a2817bd
hex2574d345

628413253 has 8 divisors (see below), whose sum is σ = 677652696. Its totient is φ = 579302400.

The previous prime is 628413241. The next prime is 628413257. The reversal of 628413253 is 352314826.

628413253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6260004 + 622153249 = 2502^2 + 24943^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 628413253 - 25 = 628413221 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 (628413257) 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, 21868 + ... + 41653.

It is an arithmetic number, because the mean of its divisors is an integer number (84706587).

Almost surely, 2628413253 is an apocalyptic number.

It is an amenable number.

628413253 is a deficient number, since it is larger than the sum of its proper divisors (49239443).

628413253 is a wasteful number, since it uses less digits than its factorization.

628413253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64295.

The product of its digits is 34560, while the sum is 34.

The square root of 628413253 is about 25068.1721112649. The cubic root of 628413253 is about 856.5415700660.

The spelling of 628413253 in words is "six hundred twenty-eight million, four hundred thirteen thousand, two hundred fifty-three".

Divisors: 1 13 761 9893 63521 825773 48339481 628413253