Search a number
-
+
105142716 = 223272231871
BaseRepresentation
bin1100100010001…
…01100110111100
321022211210200200
412101011212330
5203404031331
614233323500
72414461350
oct621054674
9238753620
10105142716
1154394308
122b266590
1318a24533
14dd6d460
15936d5e6
hex64459bc

105142716 has 72 divisors (see below), whose sum is σ = 305270784. Its totient is φ = 29890080.

The previous prime is 105142679. The next prime is 105142747. The reversal of 105142716 is 617241501.

It is a happy number.

It is a super-2 number, since 2×1051427162 = 22109981455713312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105142716.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 55261 + ... + 57131.

It is an arithmetic number, because the mean of its divisors is an integer number (4239872).

Almost surely, 2105142716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105142716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152635392).

105142716 is an abundant number, since it is smaller than the sum of its proper divisors (200128068).

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

105142716 is a wasteful number, since it uses less digits than its factorization.

105142716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 105142716 is about 10253.9122289983. The cubic root of 105142716 is about 471.9830442535.

The spelling of 105142716 in words is "one hundred five million, one hundred forty-two thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 223 252 446 669 892 1338 1561 1871 2007 2676 3122 3742 4014 4683 5613 6244 7484 8028 9366 11226 13097 14049 16839 18732 22452 26194 28098 33678 39291 52388 56196 67356 78582 117873 157164 235746 417233 471492 834466 1251699 1668932 2503398 2920631 3755097 5006796 5841262 7510194 8761893 11682524 15020388 17523786 26285679 35047572 52571358 105142716