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53538347 = 187928493
BaseRepresentation
bin1100110000111…
…0111000101011
310201202000210202
43030032320223
5102201211342
65151302415
71220032322
oct314167053
9121660722
1053538347
1128248175
1215b1aa0b
13b126ac5
1471790b9
154a78332
hex330ee2b

53538347 has 4 divisors (see below), whose sum is σ = 53568720. Its totient is φ = 53507976.

The previous prime is 53538343. The next prime is 53538349. The reversal of 53538347 is 74383535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74383535 = 514876707.

It is a cyclic number.

It is not a de Polignac number, because 53538347 - 22 = 53538343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53538347.

It is not an unprimeable number, because it can be changed into a prime (53538341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12368 + ... + 16125.

It is an arithmetic number, because the mean of its divisors is an integer number (13392180).

Almost surely, 253538347 is an apocalyptic number.

53538347 is a deficient number, since it is larger than the sum of its proper divisors (30373).

53538347 is a wasteful number, since it uses less digits than its factorization.

53538347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30372.

The product of its digits is 151200, while the sum is 38.

The square root of 53538347 is about 7316.9902965632. The cubic root of 53538347 is about 376.8961079808.

The spelling of 53538347 in words is "fifty-three million, five hundred thirty-eight thousand, three hundred forty-seven".

Divisors: 1 1879 28493 53538347