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13531253 = 47674297
BaseRepresentation
bin110011100111…
…100001110101
3221110110101112
4303213201311
511431000003
61202004405
7223004501
oct63474165
927413345
1013531253
11770225a
124646705
132a59c78
141b23301
1512c43d8
hexce7875

13531253 has 8 divisors (see below), whose sum is σ = 14028672. Its totient is φ = 13042656.

The previous prime is 13531229. The next prime is 13531277. The reversal of 13531253 is 35213531.

It is an interprime number because it is at equal distance from previous prime (13531229) and next prime (13531277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13531253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (1753584).

Almost surely, 213531253 is an apocalyptic number.

It is an amenable number.

13531253 is a deficient number, since it is larger than the sum of its proper divisors (497419).

13531253 is an equidigital number, since it uses as much as digits as its factorization.

13531253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411.

The product of its digits is 1350, while the sum is 23.

The square root of 13531253 is about 3678.4851501671. The cubic root of 13531253 is about 238.2937607968.

Adding to 13531253 its reverse (35213531), we get a palindrome (48744784).

The spelling of 13531253 in words is "thirteen million, five hundred thirty-one thousand, two hundred fifty-three".

Divisors: 1 47 67 3149 4297 201959 287899 13531253