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145018813952 = 292335934303
BaseRepresentation
bin1000011100001111001…
…0110111111000000000
3111212022121111001012102
42013003302313320000
54333444304021302
6150342024245532
713322462402645
oct2070362677000
9455277431172
10145018813952
1156558381371
12241326108a8
13108a15aa1ac
147039dc9dcc
153b8b642702
hex21c3cb7e00

145018813952 has 80 divisors (see below), whose sum is σ = 303203450880. Its totient is φ = 69161613312.

The previous prime is 145018813937. The next prime is 145018814099. The reversal of 145018813952 is 259318810541.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 145018813897 and 145018813906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4210433 + ... + 4244735.

It is an arithmetic number, because the mean of its divisors is an integer number (3790043136).

Almost surely, 2145018813952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145018813952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151601725440).

145018813952 is an abundant number, since it is smaller than the sum of its proper divisors (158184636928).

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

145018813952 is an equidigital number, since it uses as much as digits as its factorization.

145018813952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34703 (or 34687 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 145018813952 in words is "one hundred forty-five billion, eighteen million, eight hundred thirteen thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 256 359 368 512 718 736 1436 1472 2872 2944 5744 5888 8257 11488 11776 16514 22976 33028 34303 45952 66056 68606 91904 132112 137212 183808 264224 274424 528448 548848 788969 1056896 1097696 1577938 2113792 2195392 3155876 4227584 4390784 6311752 8781568 12314777 12623504 17563136 24629554 25247008 49259108 50494016 98518216 100988032 197036432 201976064 283239871 394072864 403952128 566479742 788145728 1132959484 1576291456 2265918968 3152582912 4531837936 6305165824 9063675872 18127351744 36254703488 72509406976 145018813952