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630160 = 2457877
BaseRepresentation
bin10011001110110010000
31012000102021
42121312100
5130131120
621301224
75233126
oct2316620
91160367
10630160
113a04a3
12264814
13190a9b
14125916
15c6aaa
hex99d90

630160 has 20 divisors (see below), whose sum is σ = 1465308. Its totient is φ = 252032.

The previous prime is 630151. The next prime is 630163. The reversal of 630160 is 61036.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 473344 = 396^2 + 688^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (630163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3859 + ... + 4018.

2630160 is an apocalyptic number.

It is an amenable number.

630160 is an abundant number, since it is smaller than the sum of its proper divisors (835148).

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

630160 is a wasteful number, since it uses less digits than its factorization.

630160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 630160 is about 793.8261774469. The cubic root of 630160 is about 85.7334454523.

Adding to 630160 its reverse (61036), we get a palindrome (691196).

The spelling of 630160 in words is "six hundred thirty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 7877 15754 31508 39385 63016 78770 126032 157540 315080 630160