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146382493 = 612399713
BaseRepresentation
bin10001011100110…
…01111010011101
3101012110000000211
420232121322131
5244433214433
622305252421
73425142055
oct1056317235
9335400024
10146382493
11756a1374
1241034111
132443347a
1415626565
15ccb78cd
hex8b99e9d

146382493 has 4 divisors (see below), whose sum is σ = 148782268. Its totient is φ = 143982720.

The previous prime is 146382491. The next prime is 146382499. The reversal of 146382493 is 394283641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54567769 + 91814724 = 7387^2 + 9582^2 .

It is a cyclic number.

It is not a de Polignac number, because 146382493 - 21 = 146382491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146382491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199796 + ... + 1199917.

It is an arithmetic number, because the mean of its divisors is an integer number (37195567).

Almost surely, 2146382493 is an apocalyptic number.

It is an amenable number.

146382493 is a deficient number, since it is larger than the sum of its proper divisors (2399775).

146382493 is an equidigital number, since it uses as much as digits as its factorization.

146382493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399774.

The product of its digits is 124416, while the sum is 40.

The square root of 146382493 is about 12098.8632937148. The cubic root of 146382493 is about 527.0231750506.

The spelling of 146382493 in words is "one hundred forty-six million, three hundred eighty-two thousand, four hundred ninety-three".

Divisors: 1 61 2399713 146382493