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13830553 = 111257323
BaseRepresentation
bin110100110000…
…100110011001
3222000122221201
4310300212121
512020034203
61212234201
7225362212
oct64604631
928018851
1013830553
117897110
12476b961
132b33279
141ba0409
151332e1d
hexd30999

13830553 has 4 divisors (see below), whose sum is σ = 15087888. Its totient is φ = 12573220.

The previous prime is 13830541. The next prime is 13830559. The reversal of 13830553 is 35503831.

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 de Polignac number, because none of the positive numbers 2k-13830553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13830559) 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, 628651 + ... + 628672.

It is an arithmetic number, because the mean of its divisors is an integer number (3771972).

Almost surely, 213830553 is an apocalyptic number.

It is an amenable number.

13830553 is a deficient number, since it is larger than the sum of its proper divisors (1257335).

13830553 is a wasteful number, since it uses less digits than its factorization.

13830553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257334.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 13830553 is about 3718.9451461402. The cubic root of 13830553 is about 240.0379164631.

The spelling of 13830553 in words is "thirteen million, eight hundred thirty thousand, five hundred fifty-three".

Divisors: 1 11 1257323 13830553