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630624830 = 2511107131409
BaseRepresentation
bin100101100101101…
…001001000111110
31121221122001122012
4211211221020332
52242414443310
6142324251222
721425136233
oct4545511076
91557561565
10630624830
112a3a75850
12157240b12
13a085c0b4
145da7978a
153a56bc05
hex2596923e

630624830 has 64 divisors (see below), whose sum is σ = 1262511360. Its totient is φ = 224889600.

The previous prime is 630624829. The next prime is 630624851. The reversal of 630624830 is 38426036.

630624830 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1541666 + ... + 1542074.

It is an arithmetic number, because the mean of its divisors is an integer number (19726740).

Almost surely, 2630624830 is an apocalyptic number.

630624830 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

630624830 is a wasteful number, since it uses less digits than its factorization.

630624830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 630624830 is about 25112.2446228926. The cubic root of 630624830 is about 857.5452035545.

The spelling of 630624830 in words is "six hundred thirty million, six hundred twenty-four thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 22 55 107 110 131 214 262 409 535 655 818 1070 1177 1310 1441 2045 2354 2882 4090 4499 5885 7205 8998 11770 14017 14410 22495 28034 43763 44990 53579 70085 87526 107158 140170 154187 218815 267895 308374 437630 481393 535790 589369 770935 962786 1178738 1541870 2406965 2946845 4813930 5732953 5893690 11465906 28664765 57329530 63062483 126124966 315312415 630624830