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145242230804 = 221116183203977
BaseRepresentation
bin1000011101000100011…
…1001001000000010100
3111212220011212210111122
42013101013021000110
54334424002341204
6150420125023112
713331144410016
oct2072107110024
9455804783448
10145242230804
11566624a87a0
12241953b4a98
1310908972c08
14705b9461b6
153ba10750be
hex21d11c9014

145242230804 has 24 divisors (see below), whose sum is σ = 277299115968. Its totient is φ = 66014792640.

The previous prime is 145242230801. The next prime is 145242230813. The reversal of 145242230804 is 408032242541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145242230801) by changing a digit.

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, 610064 + ... + 814040.

It is an arithmetic number, because the mean of its divisors is an integer number (11554129832).

Almost surely, 2145242230804 is an apocalyptic number.

It is an amenable number.

145242230804 is a deficient number, since it is larger than the sum of its proper divisors (132056885164).

145242230804 is a wasteful number, since it uses less digits than its factorization.

145242230804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220175 (or 220173 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 145242230804 in words is "one hundred forty-five billion, two hundred forty-two million, two hundred thirty thousand, eight hundred four".

Divisors: 1 2 4 11 22 44 16183 32366 64732 178013 203977 356026 407954 712052 815908 2243747 4487494 8974988 3300959791 6601919582 13203839164 36310557701 72621115402 145242230804