Search a number
-
+
630145724 = 221359293701
BaseRepresentation
bin100101100011110…
…100001010111100
31121220201201102112
4211203310022330
52242304130344
6142310113152
721421102355
oct4543641274
91556651375
10630145724
112a377889a
1215704b7b8
13a0721cc0
145d992d2c
153a4c4c9e
hex258f42bc

630145724 has 48 divisors (see below), whose sum is σ = 1213561440. Its totient is φ = 284524800.

The previous prime is 630145723. The next prime is 630145751. The reversal of 630145724 is 427541036.

630145724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630145723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898574 + ... + 899274.

It is an arithmetic number, because the mean of its divisors is an integer number (25282530).

Almost surely, 2630145724 is an apocalyptic number.

It is an amenable number.

630145724 is a deficient number, since it is larger than the sum of its proper divisors (583415716).

630145724 is a wasteful number, since it uses less digits than its factorization.

630145724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 630145724 is about 25102.7035197407. The cubic root of 630145724 is about 857.3279802952.

It can be divided in two parts, 6301 and 45724, that added together give a palindrome (52025).

The spelling of 630145724 in words is "six hundred thirty million, one hundred forty-five thousand, seven hundred twenty-four".

Divisors: 1 2 4 13 26 52 59 118 236 293 586 701 767 1172 1402 1534 2804 3068 3809 7618 9113 15236 17287 18226 34574 36452 41359 69148 82718 165436 205393 224731 410786 449462 537667 821572 898924 1075334 2150668 2670109 5340218 10680436 12118187 24236374 48472748 157536431 315072862 630145724