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54872719063 = 68909796307
BaseRepresentation
bin110011000110101010…
…110011111011010111
312020122011200221120021
4303012222303323113
51344334404002223
641112544450011
73651540262531
oct630652637327
9166564627507
1054872719063
11212a9245aa8
12a774919907
135236425646
14292793c851
15166255865d
hexcc6ab3ed7

54872719063 has 4 divisors (see below), whose sum is σ = 54873584280. Its totient is φ = 54871853848.

The previous prime is 54872719061. The next prime is 54872719091. The reversal of 54872719063 is 36091727845.

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

It is a cyclic number.

It is not a de Polignac number, because 54872719063 - 21 = 54872719061 is a prime.

It is a super-2 number, since 2×548727190632 (a number of 22 digits) contains 22 as substring.

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 54872719063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54872719061) 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, 329245 + ... + 467062.

It is an arithmetic number, because the mean of its divisors is an integer number (13718396070).

It is a 2-persistent number, because it is pandigital, and so is 2⋅54872719063 = 109745438126, but 3⋅54872719063 = 164618157189 is not.

Almost surely, 254872719063 is an apocalyptic number.

54872719063 is the 125212-nd centered heptagonal number.

54872719063 is a deficient number, since it is larger than the sum of its proper divisors (865217).

54872719063 is an equidigital number, since it uses as much as digits as its factorization.

54872719063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865216.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 54872719063 in words is "fifty-four billion, eight hundred seventy-two million, seven hundred nineteen thousand, sixty-three".

Divisors: 1 68909 796307 54872719063