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144965656 = 23111799203
BaseRepresentation
bin10001010010000…
…00000000011000
3101002210000111101
420221000000120
5244102400111
622215041144
73410121253
oct1051000030
9332700441
10144965656
1174913930
12406701b4
13240585c4
141537809a
15cad7bc1
hex8a40018

144965656 has 32 divisors (see below), whose sum is σ = 298209600. Its totient is φ = 65518240.

The previous prime is 144965629. The next prime is 144965659. The reversal of 144965656 is 656569441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144965659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11151 + ... + 20353.

It is an arithmetic number, because the mean of its divisors is an integer number (9319050).

Almost surely, 2144965656 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 144965656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149104800).

144965656 is an abundant number, since it is smaller than the sum of its proper divisors (153243944).

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

144965656 is a wasteful number, since it uses less digits than its factorization.

144965656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399 (or 9395 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 144965656 is about 12040.1684373600. The cubic root of 144965656 is about 525.3173059921.

The spelling of 144965656 in words is "one hundred forty-four million, nine hundred sixty-five thousand, six hundred fifty-six".

Divisors: 1 2 4 8 11 22 44 88 179 358 716 1432 1969 3938 7876 9203 15752 18406 36812 73624 101233 202466 404932 809864 1647337 3294674 6589348 13178696 18120707 36241414 72482828 144965656