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147472 = 2413709
BaseRepresentation
bin100100000000010000
321111021221
4210000100
514204342
63054424
71152643
oct440020
9244257
10147472
11a0886
1271414
1352180
143ba5a
152da67
hex24010

147472 has 20 divisors (see below), whose sum is σ = 308140. Its totient is φ = 67968.

The previous prime is 147457. The next prime is 147481. The reversal of 147472 is 274741.

It can be written as a sum of positive squares in 2 ways, for example, as 20736 + 126736 = 144^2 + 356^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147 + ... + 562.

It is an arithmetic number, because the mean of its divisors is an integer number (15407).

2147472 is an apocalyptic number.

It is an amenable number.

147472 is an abundant number, since it is smaller than the sum of its proper divisors (160668).

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

147472 is a wasteful number, since it uses less digits than its factorization.

147472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 724 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 147472 is about 384.0208327682. The cubic root of 147472 is about 52.8327467507.

The spelling of 147472 in words is "one hundred forty-seven thousand, four hundred seventy-two", and thus it is an iban number.

Divisors: 1 2 4 8 13 16 26 52 104 208 709 1418 2836 5672 9217 11344 18434 36868 73736 147472