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12315053 = 292711567
BaseRepresentation
bin101110111110…
…100110101101
3212011200002002
4232332212231
511123040203
61115542045
7206450642
oct56764655
925150062
1012315053
116a51533
12415a925
13272251a
1418c7dc9
151133d88
hexbbe9ad

12315053 has 8 divisors (see below), whose sum is σ = 12794880. Its totient is φ = 11838960.

The previous prime is 12315013. The next prime is 12315077. The reversal of 12315053 is 35051321.

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

It is a de Polignac number, because none of the positive numbers 2k-12315053 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 (12315013) 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, 7076 + ... + 8642.

It is an arithmetic number, because the mean of its divisors is an integer number (1599360).

Almost surely, 212315053 is an apocalyptic number.

It is an amenable number.

12315053 is a deficient number, since it is larger than the sum of its proper divisors (479827).

12315053 is a wasteful number, since it uses less digits than its factorization.

12315053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 12315053 is about 3509.2809804859. The cubic root of 12315053 is about 230.9291525142.

Adding to 12315053 its reverse (35051321), we get a palindrome (47366374).

The spelling of 12315053 in words is "twelve million, three hundred fifteen thousand, fifty-three".

Divisors: 1 29 271 1567 7859 45443 424657 12315053