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144751470 = 23529379439
BaseRepresentation
bin10001010000010…
…11101101101110
3101002101010200120
420220023231232
5244024021340
622210305410
73405236643
oct1050135556
9332333616
10144751470
1174787a16
1240588266
1323cb1c76
141531ddca
15ca944d0
hex8a0bb6e

144751470 has 64 divisors (see below), whose sum is σ = 361152000. Its totient is φ = 37086336.

The previous prime is 144751433. The next prime is 144751471. The reversal of 144751470 is 74157441.

144751470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144751471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329511 + ... + 329949.

It is an arithmetic number, because the mean of its divisors is an integer number (5643000).

Almost surely, 2144751470 is an apocalyptic number.

144751470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144751470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180576000).

144751470 is an abundant number, since it is smaller than the sum of its proper divisors (216400530).

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

144751470 is a wasteful number, since it uses less digits than its factorization.

144751470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 144751470 is about 12031.2705064760. The cubic root of 144751470 is about 525.0584606101.

The spelling of 144751470 in words is "one hundred forty-four million, seven hundred fifty-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 379 435 439 758 870 878 1137 1317 1895 2195 2274 2634 3790 4390 5685 6585 10991 11370 12731 13170 21982 25462 32973 38193 54955 63655 65946 76386 109910 127310 164865 166381 190965 329730 332762 381930 499143 831905 998286 1663810 2495715 4825049 4991430 9650098 14475147 24125245 28950294 48250490 72375735 144751470