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53144044135 = 5713277421661
BaseRepresentation
bin110001011111101000…
…011100001001100111
312002011200220011100221
4301133220130021213
51332314333403020
640225233145211
73560646631120
oct613750341147
9162150804327
1053144044135
11205a1477a36
12a3719bb207
13501c249280
142802111047
1515b08dd6aa
hexc5fa1c267

53144044135 has 32 divisors (see below), whose sum is σ = 78773208192. Its totient is φ = 33516910080.

The previous prime is 53144044133. The next prime is 53144044153.

53144044135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53144044135 - 21 = 53144044133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53144044135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144044133) 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 31 ways as a sum of consecutive naturals, for example, 84796 + ... + 336865.

It is an arithmetic number, because the mean of its divisors is an integer number (2461662756).

Almost surely, 253144044135 is an apocalyptic number.

53144044135 is a deficient number, since it is larger than the sum of its proper divisors (25629164057).

53144044135 is a wasteful number, since it uses less digits than its factorization.

53144044135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421963.

The product of its (nonzero) digits is 57600, while the sum is 34.

It can be divided in two parts, 531440 and 44135, that added together give a palindrome (575575).

The spelling of 53144044135 in words is "fifty-three billion, one hundred forty-four million, forty-four thousand, one hundred thirty-five".

Divisors: 1 5 7 13 35 65 91 277 455 1385 1939 3601 9695 18005 25207 126035 421661 2108305 2951627 5481593 14758135 27407965 38371151 116800097 191855755 584000485 817600679 1518401261 4088003395 7592006305 10628808827 53144044135