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629228 = 22157307
BaseRepresentation
bin10011001100111101100
31011222010202
42121213230
5130113403
621253032
75230325
oct2314754
91158122
10629228
1139a826
12264178
13190532
1412544c
15c6688
hex999ec

629228 has 6 divisors (see below), whose sum is σ = 1101156. Its totient is φ = 314612.

The previous prime is 629203. The next prime is 629243. The reversal of 629228 is 822926.

It is a happy number.

629228 is nontrivially palindromic in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 629228.

It is an unprimeable number.

629228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78650 + ... + 78657.

It is an arithmetic number, because the mean of its divisors is an integer number (183526).

2629228 is an apocalyptic number.

It is an amenable number.

629228 is a deficient number, since it is larger than the sum of its proper divisors (471928).

629228 is a wasteful number, since it uses less digits than its factorization.

629228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157311 (or 157309 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 629228 is about 793.2389299574. The cubic root of 629228 is about 85.6911583106.

The spelling of 629228 in words is "six hundred twenty-nine thousand, two hundred twenty-eight".

Divisors: 1 2 4 157307 314614 629228