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134724 = 223103109
BaseRepresentation
bin100000111001000100
320211210210
4200321010
513302344
62515420
71100532
oct407104
9224723
10134724
1192247
1265b70
1349425
1437152
1529db9
hex20e44

134724 has 24 divisors (see below), whose sum is σ = 320320. Its totient is φ = 44064.

The previous prime is 134707. The next prime is 134731. The reversal of 134724 is 427431.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 134724.

It is an unprimeable number.

134724 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 7 ways as a sum of consecutive naturals, for example, 1182 + ... + 1290.

2134724 is an apocalyptic number.

It is an amenable number.

134724 is an abundant number, since it is smaller than the sum of its proper divisors (185596).

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

134724 is a wasteful number, since it uses less digits than its factorization.

134724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 217 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 134724 is about 367.0476808263. The cubic root of 134724 is about 51.2642950407.

It can be divided in two parts, 134 and 724, that added together give a palindrome (858).

The spelling of 134724 in words is "one hundred thirty-four thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 103 109 206 218 309 327 412 436 618 654 1236 1308 11227 22454 33681 44908 67362 134724