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145054980231 = 373140966939
BaseRepresentation
bin1000011100010111110…
…0110101100010000111
3111212102010112111000020
42013011330311202013
54334033033331411
6150345355350223
713323411663000
oct2070574654207
9455363474006
10145054980231
1156576833657
1224142752373
13108a8c30a65
147040b221a7
153b8e8d8606
hex21c5f35887

145054980231 has 16 divisors (see below), whose sum is σ = 225547104000. Its totient is φ = 82888559544.

The previous prime is 145054980229. The next prime is 145054980307. The reversal of 145054980231 is 132089450541.

145054980231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145054980231 - 21 = 145054980229 is a prime.

It is a super-2 number, since 2×1450549802312 (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 (145054980221) 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 15 ways as a sum of consecutive naturals, for example, 70482441 + ... + 70484498.

It is an arithmetic number, because the mean of its divisors is an integer number (14096694000).

Almost surely, 2145054980231 is an apocalyptic number.

145054980231 is a deficient number, since it is larger than the sum of its proper divisors (80492123769).

145054980231 is an equidigital number, since it uses as much as digits as its factorization.

145054980231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140966963 (or 140966949 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 145054980231 in words is "one hundred forty-five billion, fifty-four million, nine hundred eighty thousand, two hundred thirty-one".

Divisors: 1 3 7 21 49 147 343 1029 140966939 422900817 986768573 2960305719 6907380011 20722140033 48351660077 145054980231