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630252 = 223274161
BaseRepresentation
bin10011001110111101100
31012000112200
42121313230
5130132002
621301500
75233320
oct2316754
91160480
10630252
113a0577
12264890
13190b3c
14125980
15c6b1c
hex99dec

630252 has 72 divisors (see below), whose sum is σ = 1895712. Its totient is φ = 172800.

The previous prime is 630247. The next prime is 630263. The reversal of 630252 is 252036.

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

It is an unprimeable number.

630252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10302 + ... + 10362.

2630252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947856).

630252 is an abundant number, since it is smaller than the sum of its proper divisors (1265460).

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

630252 is a wasteful number, since it uses less digits than its factorization.

630252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 630252 is about 793.8841225267. The cubic root of 630252 is about 85.7376174580.

Adding to 630252 its reverse (252036), we get a palindrome (882288).

The spelling of 630252 in words is "six hundred thirty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 41 42 61 63 82 84 122 123 126 164 183 244 246 252 287 366 369 427 492 549 574 732 738 854 861 1098 1148 1281 1476 1708 1722 2196 2501 2562 2583 3444 3843 5002 5124 5166 7503 7686 10004 10332 15006 15372 17507 22509 30012 35014 45018 52521 70028 90036 105042 157563 210084 315126 630252