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14053581 = 34173501
BaseRepresentation
bin110101100111…
…000011001101
3222102222220000
4311213003031
512044203311
61221114513
7230311353
oct65470315
928388800
1014053581
117a29733
124858a39
132bb0939
141c1b7d3
151379056
hexd670cd

14053581 has 10 divisors (see below), whose sum is σ = 20993742. Its totient is φ = 9369000.

The previous prime is 14053573. The next prime is 14053591. The reversal of 14053581 is 18535041.

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 6812100 = 2691^2 + 2610^2 .

It is not a de Polignac number, because 14053581 - 23 = 14053573 is a prime.

It is a super-2 number, since 2×140535812 = 395006277847122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14053511) 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 9 ways as a sum of consecutive naturals, for example, 86670 + ... + 86831.

Almost surely, 214053581 is an apocalyptic number.

It is an amenable number.

14053581 is a deficient number, since it is larger than the sum of its proper divisors (6940161).

14053581 is an equidigital number, since it uses as much as digits as its factorization.

14053581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173513 (or 173504 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 14053581 is about 3748.8106113806. The cubic root of 14053581 is about 241.3213060270.

It can be divided in two parts, 1405 and 3581, that multiplied together give a palindrome (5031305).

The spelling of 14053581 in words is "fourteen million, fifty-three thousand, five hundred eighty-one".

Divisors: 1 3 9 27 81 173501 520503 1561509 4684527 14053581