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630145401 = 33131121787
BaseRepresentation
bin100101100011110…
…100000101111001
31121220201200222120
4211203310011321
52242304123101
6142310111453
721421101414
oct4543640571
91556650876
10630145401
112a3778626
1215704b589
13a0721b02
145d992b7b
153a4c4b36
hex258f4179

630145401 has 16 divisors (see below), whose sum is σ = 870125568. Its totient is φ = 405219600.

The previous prime is 630145387. The next prime is 630145423. The reversal of 630145401 is 104541036.

630145401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630145401 - 210 = 630144377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630145301) 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, 18030 + ... + 39816.

It is an arithmetic number, because the mean of its divisors is an integer number (54382848).

Almost surely, 2630145401 is an apocalyptic number.

It is an amenable number.

630145401 is a deficient number, since it is larger than the sum of its proper divisors (239980167).

630145401 is a wasteful number, since it uses less digits than its factorization.

630145401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22132.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 630145401 is about 25102.6970861698. The cubic root of 630145401 is about 857.3278338122.

Adding to 630145401 its reverse (104541036), we get a palindrome (734686437).

The spelling of 630145401 in words is "six hundred thirty million, one hundred forty-five thousand, four hundred one".

Divisors: 1 3 31 93 311 933 9641 21787 28923 65361 675397 2026191 6775757 20327271 210048467 630145401