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13474443 = 34491481
BaseRepresentation
bin110011011001…
…101010001011
3221100120110110
4303121222023
511422140233
61200445403
7222350043
oct63315213
927316413
1013474443
117673604
124619863
132a3a158
141b0a723
1512b2663
hexcd9a8b

13474443 has 4 divisors (see below), whose sum is σ = 17965928. Its totient is φ = 8982960.

The previous prime is 13474427. The next prime is 13474453. The reversal of 13474443 is 34447431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34447431 = 311482477.

It is not a de Polignac number, because 13474443 - 24 = 13474427 is a prime.

It is a super-2 number, since 2×134744432 = 363121228320498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13474443.

It is not an unprimeable number, because it can be changed into a prime (13474423) by changing a digit.

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, 2245738 + ... + 2245743.

It is an arithmetic number, because the mean of its divisors is an integer number (4491482).

Almost surely, 213474443 is an apocalyptic number.

13474443 is a deficient number, since it is larger than the sum of its proper divisors (4491485).

13474443 is an equidigital number, since it uses as much as digits as its factorization.

13474443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491484.

The product of its digits is 16128, while the sum is 30.

The square root of 13474443 is about 3670.7550994312. The cubic root of 13474443 is about 237.9598065496.

The spelling of 13474443 in words is "thirteen million, four hundred seventy-four thousand, four hundred forty-three".

Divisors: 1 3 4491481 13474443