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53140245 = 35191371361
BaseRepresentation
bin1100101010110…
…1101100010101
310200222210201020
43022231230111
5102100441440
65134551353
71213453554
oct312555425
9120883636
1053140245
1127aa6064
1215968559
13b017842
1470b3d9b
1549ea3d0
hex32adb15

53140245 has 32 divisors (see below), whose sum is σ = 90218880. Its totient is φ = 26634240.

The previous prime is 53140193. The next prime is 53140253. The reversal of 53140245 is 54204135.

It is not a de Polignac number, because 53140245 - 215 = 53107477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38365 + ... + 39725.

It is an arithmetic number, because the mean of its divisors is an integer number (2819340).

Almost surely, 253140245 is an apocalyptic number.

It is an amenable number.

53140245 is a deficient number, since it is larger than the sum of its proper divisors (37078635).

53140245 is a wasteful number, since it uses less digits than its factorization.

53140245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 53140245 is about 7289.7355919128. The cubic root of 53140245 is about 375.9596045519.

The spelling of 53140245 in words is "fifty-three million, one hundred forty thousand, two hundred forty-five".

Divisors: 1 3 5 15 19 57 95 137 285 411 685 1361 2055 2603 4083 6805 7809 13015 20415 25859 39045 77577 129295 186457 387885 559371 932285 2796855 3542683 10628049 17713415 53140245