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144921739124 = 2241883669141
BaseRepresentation
bin1000011011111000000…
…0100011111101110100
3111212001211211010120102
42012332000203331310
54333244431122444
6150324235453232
713320203312651
oct2067600437564
9455054733512
10144921739124
11565085a8638
1224105bb7218
131088744bc76
14702b15ac28
153b82d6984e
hex21be023f74

144921739124 has 12 divisors (see below), whose sum is σ = 259798727748. Its totient is φ = 70693531200.

The previous prime is 144921739099. The next prime is 144921739147. The reversal of 144921739124 is 421937129441.

144921739124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8183011600 + 136738727524 = 90460^2 + 369782^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 441834407 + ... + 441834734.

It is an arithmetic number, because the mean of its divisors is an integer number (21649893979).

Almost surely, 2144921739124 is an apocalyptic number.

It is an amenable number.

144921739124 is a deficient number, since it is larger than the sum of its proper divisors (114876988624).

144921739124 is a wasteful number, since it uses less digits than its factorization.

144921739124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883669186 (or 883669184 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The spelling of 144921739124 in words is "one hundred forty-four billion, nine hundred twenty-one million, seven hundred thirty-nine thousand, one hundred twenty-four".

Divisors: 1 2 4 41 82 164 883669141 1767338282 3534676564 36230434781 72460869562 144921739124