Search a number
-
+
105123060 = 22325783431
BaseRepresentation
bin1100100010000…
…00110011110100
321022210210201200
412101000303310
5203402414220
614233052500
72414350140
oct621006364
9238723650
10105123060
1154380569
122b257130
1318a185c3
14dd66220
159367890
hex6440cf4

105123060 has 72 divisors (see below), whose sum is σ = 364430976. Its totient is φ = 24027840.

The previous prime is 105123049. The next prime is 105123061. The reversal of 105123060 is 60321501.

It is a super-2 number, since 2×1051230602 = 22101715487527200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105123061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40456 + ... + 42975.

Almost surely, 2105123060 is an apocalyptic number.

105123060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105123060 is an abundant number, since it is smaller than the sum of its proper divisors (259307916).

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

105123060 is a wasteful number, since it uses less digits than its factorization.

105123060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83453 (or 83448 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 105123060 is about 10252.9537207577. The cubic root of 105123060 is about 471.9536306550.

Adding to 105123060 its reverse (60321501), we get a palindrome (165444561).

The spelling of 105123060 in words is "one hundred five million, one hundred twenty-three thousand, sixty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 83431 166862 250293 333724 417155 500586 584017 750879 834310 1001172 1168034 1251465 1501758 1668620 1752051 2336068 2502930 2920085 3003516 3504102 3754395 5005860 5256153 5840170 7008204 7508790 8760255 10512306 11680340 15017580 17520510 21024612 26280765 35041020 52561530 105123060