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144591804740 = 2257229590237
BaseRepresentation
bin1000011010101001010…
…1111101100101000100
3111211012211222201200102
42012222111331211010
54332111000222430
6150231412103232
713306056030065
oct2065225754504
9454184881612
10144591804740
1156359338a99
1224033604b18
1310833ca0016
146dd93d456c
153b63de6345
hex21aa57d944

144591804740 has 12 divisors (see below), whose sum is σ = 303642789996. Its totient is φ = 57836721888.

The previous prime is 144591804683. The next prime is 144591804779. The reversal of 144591804740 is 47408195441.

It can be written as a sum of positive squares in 2 ways, for example, as 76466628676 + 68125176064 = 276526^2 + 261008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3614795099 + ... + 3614795138.

It is an arithmetic number, because the mean of its divisors is an integer number (25303565833).

Almost surely, 2144591804740 is an apocalyptic number.

144591804740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144591804740 is an abundant number, since it is smaller than the sum of its proper divisors (159050985256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144591804740 is a wasteful number, since it uses less digits than its factorization.

144591804740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229590246 (or 7229590244 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 144591804740 in words is "one hundred forty-four billion, five hundred ninety-one million, eight hundred four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 7229590237 14459180474 28918360948 36147951185 72295902370 144591804740