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53198869 = 431996217
BaseRepresentation
bin1100101011110…
…0000000010101
310201002210010111
43022330000111
5102104330434
65140123021
71214116513
oct312740025
9121083114
1053198869
1128036109
1215996471
13b038429
1470cb4b3
154a0c964
hex32bc015

53198869 has 8 divisors (see below), whose sum is σ = 54718400. Its totient is φ = 51692256.

The previous prime is 53198863. The next prime is 53198891. The reversal of 53198869 is 96889135.

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

It is a cyclic number.

It is not a de Polignac number, because 53198869 - 23 = 53198861 is a prime.

It is a super-2 number, since 2×531988692 = 5660239325758322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53198861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5449 + ... + 11665.

It is an arithmetic number, because the mean of its divisors is an integer number (6839800).

Almost surely, 253198869 is an apocalyptic number.

It is an amenable number.

53198869 is a deficient number, since it is larger than the sum of its proper divisors (1519531).

53198869 is a wasteful number, since it uses less digits than its factorization.

53198869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459.

The product of its digits is 466560, while the sum is 49.

The square root of 53198869 is about 7293.7554798608. The cubic root of 53198869 is about 376.0978058714.

The spelling of 53198869 in words is "fifty-three million, one hundred ninety-eight thousand, eight hundred sixty-nine".

Divisors: 1 43 199 6217 8557 267331 1237183 53198869