Search a number
-
+
630748 = 221371151
BaseRepresentation
bin10011001111111011100
31012001020001
42121333130
5130140443
621304044
75234626
oct2317734
91161201
10630748
113a0988
12265024
13191131
14125c16
15c6d4d
hex99fdc

630748 has 12 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 312800.

The previous prime is 630737. The next prime is 630797. The reversal of 630748 is 847036.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 28 + ... + 1123.

It is an arithmetic number, because the mean of its divisors is an integer number (92736).

2630748 is an apocalyptic number.

It is an amenable number.

630748 is a deficient number, since it is larger than the sum of its proper divisors (482084).

630748 is a wasteful number, since it uses less digits than its factorization.

630748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 630748 is about 794.1964492492. The cubic root of 630748 is about 85.7601030179.

It can be divided in two parts, 630 and 748, that added together give a triangular number (1378 = T52).

The spelling of 630748 in words is "six hundred thirty thousand, seven hundred forty-eight".

Divisors: 1 2 4 137 274 548 1151 2302 4604 157687 315374 630748