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145476 = 2234449
BaseRepresentation
bin100011100001000100
321101120000
4203201010
514123401
63041300
71144062
oct434104
9241500
10145476
119a331
1270230
13512a6
143b032
152d186
hex23844

145476 has 30 divisors (see below), whose sum is σ = 381150. Its totient is φ = 48384.

The previous prime is 145471. The next prime is 145477. The reversal of 145476 is 674541.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 15876 = 360^2 + 126^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145476.

It is not an unprimeable number, because it can be changed into a prime (145471) by changing a digit.

145476 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 100 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (12705).

2145476 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 145476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190575).

145476 is an abundant number, since it is smaller than the sum of its proper divisors (235674).

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

145476 is a wasteful number, since it uses less digits than its factorization.

145476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 454 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 145476 is about 381.4131618075. The cubic root of 145476 is about 52.5933034698.

The spelling of 145476 in words is "one hundred forty-five thousand, four hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 449 898 1347 1796 2694 4041 5388 8082 12123 16164 24246 36369 48492 72738 145476