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53280783053 = 173134163709
BaseRepresentation
bin110001100111110010…
…000011101011001101
312002112020012012220022
4301213302003223031
51333104340024203
640251000031525
73564230116631
oct614762035315
9162466165808
1053280783053
1120661681a03
12a3ab7625a5
135041684184
142816346dc1
1515bc8eda38
hexc67c83acd

53280783053 has 4 divisors (see below), whose sum is σ = 56414946780. Its totient is φ = 50146619328.

The previous prime is 53280783043. The next prime is 53280783067. The reversal of 53280783053 is 35038708235.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30151544164 + 23129238889 = 173642^2 + 152083^2 .

It is a cyclic number.

It is not a de Polignac number, because 53280783053 - 24 = 53280783037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53280782995 and 53280783013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53280783043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567081838 + ... + 1567081871.

It is an arithmetic number, because the mean of its divisors is an integer number (14103736695).

Almost surely, 253280783053 is an apocalyptic number.

It is an amenable number.

53280783053 is a deficient number, since it is larger than the sum of its proper divisors (3134163727).

53280783053 is a wasteful number, since it uses less digits than its factorization.

53280783053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134163726.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 53280783053 in words is "fifty-three billion, two hundred eighty million, seven hundred eighty-three thousand, fifty-three".

Divisors: 1 17 3134163709 53280783053