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13453357 = 59228023
BaseRepresentation
bin110011010100…
…100000101101
3221022111112111
4303110200231
511421001412
61200204021
7222231421
oct63244055
927274474
1013453357
117659785
124609611
132a30688
141b02b81
1512ab2a7
hexcd482d

13453357 has 4 divisors (see below), whose sum is σ = 13681440. Its totient is φ = 13225276.

The previous prime is 13453351. The next prime is 13453369. The reversal of 13453357 is 75335431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13453357 - 211 = 13451309 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453351) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 113953 + ... + 114070.

It is an arithmetic number, because the mean of its divisors is an integer number (3420360).

Almost surely, 213453357 is an apocalyptic number.

It is an amenable number.

13453357 is a deficient number, since it is larger than the sum of its proper divisors (228083).

13453357 is an equidigital number, since it uses as much as digits as its factorization.

13453357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228082.

The product of its digits is 18900, while the sum is 31.

The square root of 13453357 is about 3667.8818137993. The cubic root of 13453357 is about 237.8356148954.

Adding to 13453357 its reverse (75335431), we get a palindrome (88788788).

The spelling of 13453357 in words is "thirteen million, four hundred fifty-three thousand, three hundred fifty-seven".

Divisors: 1 59 228023 13453357