Search a number
-
+
620520236 = 22722161437
BaseRepresentation
bin100100111111000…
…110001100101100
31121020121200201222
4210333012030230
52232323121421
6141323522512
721243222620
oct4477061454
91536550658
10620520236
112992a4046
12153989438
139b731a4b
145c5a9180
1539722cab
hex24fc632c

620520236 has 12 divisors (see below), whose sum is σ = 1241040528. Its totient is φ = 265937232.

The previous prime is 620520223. The next prime is 620520269. The reversal of 620520236 is 632025026.

620520236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

620520236 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11080691 + ... + 11080746.

It is an arithmetic number, because the mean of its divisors is an integer number (103420044).

Almost surely, 2620520236 is an apocalyptic number.

It is an amenable number.

620520236 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.

620520236 is a wasteful number, since it uses less digits than its factorization.

620520236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22161448 (or 22161446 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 620520236 is about 24910.2435957580. The cubic root of 620520236 is about 852.9403296224.

The spelling of 620520236 in words is "six hundred twenty million, five hundred twenty thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 22161437 44322874 88645748 155130059 310260118 620520236