Search a number
-
+
105145054 = 2713157331
BaseRepresentation
bin1100100010001…
…10001011011110
321022211220220021
412101012023132
5203404120204
614233342354
72414501230
oct621061336
9238756807
10105145054
1154396043
122b2679ba
1318a25611
14dd70250
15936e154
hex64462de

105145054 has 16 divisors (see below), whose sum is σ = 181627776. Its totient is φ = 44717400.

The previous prime is 105145013. The next prime is 105145081. The reversal of 105145054 is 450541501.

It is a happy number.

It is a super-2 number, since 2×1051450542 = 22110964761325832, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 26832 + ... + 30499.

It is an arithmetic number, because the mean of its divisors is an integer number (11351736).

Almost surely, 2105145054 is an apocalyptic number.

105145054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105145054 is a deficient number, since it is larger than the sum of its proper divisors (76482722).

105145054 is a wasteful number, since it uses less digits than its factorization.

105145054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57471.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 105145054 is about 10254.0262336314. The cubic root of 105145054 is about 471.9865426356.

Adding to 105145054 its reverse (450541501), we get a palindrome (555686555).

The spelling of 105145054 in words is "one hundred five million, one hundred forty-five thousand, fifty-four".

Divisors: 1 2 7 14 131 262 917 1834 57331 114662 401317 802634 7510361 15020722 52572527 105145054