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56103030165 = 35713172417713
BaseRepresentation
bin110100010000000000…
…000100110110010101
312100210220202020010010
4310100000010312111
51404344333431130
641435014350433
74024166613420
oct642000046625
9170726666103
1056103030165
112187a774a36
12aa5895b419
1353a12a0590
142a030bc9b7
1516d55800b0
hexd10004d95

56103030165 has 64 divisors (see below), whose sum is σ = 116978674176. Its totient is φ = 22281633792.

The previous prime is 56103030143. The next prime is 56103030169.

56103030165 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56103030165 - 26 = 56103030101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56103030169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1185652 + ... + 1232061.

It is an arithmetic number, because the mean of its divisors is an integer number (1827791784).

Almost surely, 256103030165 is an apocalyptic number.

It is an amenable number.

56103030165 is an abundant number, since it is smaller than the sum of its proper divisors (60875644011).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56103030165 is a wasteful number, since it uses less digits than its factorization.

56103030165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417758.

The product of its (nonzero) digits is 8100, while the sum is 30.

It can be divided in two parts, 561030 and 30165, that added together give a palindrome (591195).

The spelling of 56103030165 in words is "fifty-six billion, one hundred three million, thirty thousand, one hundred sixty-five".

Divisors: 1 3 5 7 13 15 17 21 35 39 51 65 85 91 105 119 195 221 255 273 357 455 595 663 1105 1365 1547 1785 3315 4641 7735 23205 2417713 7253139 12088565 16923991 31430269 36265695 41101121 50771973 84619955 94290807 123303363 157151345 205505605 220011883 253859865 287707847 471454035 534314573 616516815 660035649 863123541 1100059415 1438539235 1602943719 2671572865 3300178245 3740202011 4315617705 8014718595 11220606033 18701010055 56103030165