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145311550246 = 2751343328181
BaseRepresentation
bin1000011101010100111…
…1100100101100100110
3111220002000022120220101
42013111033210230212
54340044224101441
6150431042454314
713332645540352
oct2072517445446
9456060276811
10145311550246
1156698644495
12241b466439a
131091a133a35
147066c2c462
153ba71b9231
hex21d53e4b26

145311550246 has 16 divisors (see below), whose sum is σ = 218328884928. Its totient is φ = 72535320000.

The previous prime is 145311550207. The next prime is 145311550249. The reversal of 145311550246 is 642055113541.

145311550246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1453115502462 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145311550249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5142276 + ... + 5170456.

It is an arithmetic number, because the mean of its divisors is an integer number (13645555308).

Almost surely, 2145311550246 is an apocalyptic number.

145311550246 is a deficient number, since it is larger than the sum of its proper divisors (73017334682).

145311550246 is a wasteful number, since it uses less digits than its factorization.

145311550246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32367.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 145311550246 its reverse (642055113541), we get a palindrome (787366663787).

The spelling of 145311550246 in words is "one hundred forty-five billion, three hundred eleven million, five hundred fifty thousand, two hundred forty-six".

Divisors: 1 2 751 1502 3433 6866 28181 56362 2578183 5156366 21163931 42327862 96745373 193490746 72655775123 145311550246