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12053961 = 331923497
BaseRepresentation
bin101101111110…
…110111001001
3211200101221000
4231332313021
511041211321
61110205213
7204312513
oct55766711
924611830
1012053961
116893357
124053809
13266072a
14185abb3
1510d1826
hexb7edc9

12053961 has 16 divisors (see below), whose sum is σ = 18798400. Its totient is φ = 7612704.

The previous prime is 12053957. The next prime is 12053963. The reversal of 12053961 is 16935021.

12053961 is a `hidden beast` number, since 120 + 539 + 6 + 1 = 666.

It is not a de Polignac number, because 12053961 - 22 = 12053957 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12053963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11236 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (1174900).

Almost surely, 212053961 is an apocalyptic number.

It is an amenable number.

12053961 is a deficient number, since it is larger than the sum of its proper divisors (6744439).

12053961 is a wasteful number, since it uses less digits than its factorization.

12053961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23525 (or 23519 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 12053961 is about 3471.8814783918. The cubic root of 12053961 is about 229.2855016656.

Adding to 12053961 its reverse (16935021), we get a palindrome (28988982).

The spelling of 12053961 in words is "twelve million, fifty-three thousand, nine hundred sixty-one".

Divisors: 1 3 9 19 27 57 171 513 23497 70491 211473 446443 634419 1339329 4017987 12053961