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630236073 = 3281747611
BaseRepresentation
bin100101100100001…
…010001110101001
31121220220022100210
4211210022032221
52242320023243
6142312051333
721421626645
oct4544121651
91556808323
10630236073
112a382a765
12157093b49
13a075416c
145d9b7c25
153a4e1933
hex2590a3a9

630236073 has 8 divisors (see below), whose sum is σ = 843306336. Its totient is φ = 418661600.

The previous prime is 630236071. The next prime is 630236129. The reversal of 630236073 is 370632036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630236073 - 21 = 630236071 is a prime.

It is a super-2 number, since 2×6302360732 = 794395015420922658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 630236073.

It is not an unprimeable number, because it can be changed into a prime (630236071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 372963 + ... + 374648.

It is an arithmetic number, because the mean of its divisors is an integer number (105413292).

Almost surely, 2630236073 is an apocalyptic number.

It is an amenable number.

630236073 is a deficient number, since it is larger than the sum of its proper divisors (213070263).

630236073 is a wasteful number, since it uses less digits than its factorization.

630236073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747895.

The product of its (nonzero) digits is 13608, while the sum is 30.

The square root of 630236073 is about 25104.5030422831. The cubic root of 630236073 is about 857.3689523122.

It can be divided in two parts, 63023 and 6073, that added together give a palindrome (69096).

The spelling of 630236073 in words is "six hundred thirty million, two hundred thirty-six thousand, seventy-three".

Divisors: 1 3 281 843 747611 2242833 210078691 630236073