Search a number
-
+
27808502084 = 221123270710151
BaseRepresentation
bin11001111001100001…
…000001000101000100
32122210000121021101122
4121321201001011010
5423422434031314
620435224413112
72003056240046
oct317141010504
978700537348
1027808502084
11108801a1230
125481017198
13281234c57c
1414bb381a96
15acb53b28e
hex679841144

27808502084 has 48 divisors (see below), whose sum is σ = 55423097856. Its totient is φ = 12084996000.

The previous prime is 27808502081. The next prime is 27808502123. The reversal of 27808502084 is 48020580872.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (27808502081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2734409 + ... + 2744559.

It is an arithmetic number, because the mean of its divisors is an integer number (1154647872).

Almost surely, 227808502084 is an apocalyptic number.

It is an amenable number.

27808502084 is a deficient number, since it is larger than the sum of its proper divisors (27614595772).

27808502084 is a wasteful number, since it uses less digits than its factorization.

27808502084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12896 (or 12894 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 27808502084 in words is "twenty-seven billion, eight hundred eight million, five hundred two thousand, eighty-four".

Divisors: 1 2 4 11 22 23 44 46 92 253 506 1012 2707 5414 10151 10828 20302 29777 40604 59554 62261 111661 119108 124522 223322 233473 249044 446644 466946 684871 933892 1369742 2568203 2739484 5136406 10272812 27478757 54957514 109915028 302266327 604532654 632011411 1209065308 1264022822 2528045644 6952125521 13904251042 27808502084