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630010026 = 23237945961
BaseRepresentation
bin100101100011010…
…011000010101010
31121220110211021200
4211203103002222
52242240310101
6142303145030
721416665632
oct4543230252
91556424250
10630010026
112a3695948
12156ba5176
13a06a52c9
145d9596c2
153a499986
hex258d30aa

630010026 has 24 divisors (see below), whose sum is σ = 1401915684. Its totient is φ = 204327360.

The previous prime is 630010009. The next prime is 630010039. The reversal of 630010026 is 620010036.

It is a happy number.

630010026 is a `hidden beast` number, since 630 + 0 + 10 + 0 + 26 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 629759025 + 251001 = 25095^2 + 501^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 630009990 and 630010008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472315 + ... + 473646.

Almost surely, 2630010026 is an apocalyptic number.

630010026 is an abundant number, since it is smaller than the sum of its proper divisors (771905658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630010026 is a wasteful number, since it uses less digits than its factorization.

630010026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946006 (or 946003 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 630010026 is about 25100.0005179283. Note that the first 3 decimals coincide. The cubic root of 630010026 is about 857.2664357774.

The spelling of 630010026 in words is "six hundred thirty million, ten thousand, twenty-six".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 945961 1891922 2837883 5675766 8513649 17027298 35000557 70001114 105001671 210003342 315005013 630010026