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53734861 = 261720533
BaseRepresentation
bin1100110011111…
…0110111001101
310202010000101001
43030332313031
5102224003421
65155420301
71221511255
oct314766715
9122100331
1053734861
1128371884
1215bb4691
13b19539b
1471ca965
154ab6691
hex333edcd

53734861 has 4 divisors (see below), whose sum is σ = 53758012. Its totient is φ = 53711712.

The previous prime is 53734823. The next prime is 53734903. The reversal of 53734861 is 16843735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16843735 = 53368747.

It can be written as a sum of positive squares in 2 ways, for example, as 46498761 + 7236100 = 6819^2 + 2690^2 .

It is a cyclic number.

It is not a de Polignac number, because 53734861 - 213 = 53726669 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 53734861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53734061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7650 + ... + 12883.

It is an arithmetic number, because the mean of its divisors is an integer number (13439503).

Almost surely, 253734861 is an apocalyptic number.

It is an amenable number.

53734861 is a deficient number, since it is larger than the sum of its proper divisors (23151).

53734861 is a wasteful number, since it uses less digits than its factorization.

53734861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23150.

The product of its digits is 60480, while the sum is 37.

The square root of 53734861 is about 7330.4066053664. The cubic root of 53734861 is about 377.3566808262.

The spelling of 53734861 in words is "fifty-three million, seven hundred thirty-four thousand, eight hundred sixty-one".

Divisors: 1 2617 20533 53734861