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145008746 = 2137529229
BaseRepresentation
bin10001010010010…
…10100001101010
3101002212012121022
420221022201222
5244110234441
622220012442
73410361011
oct1051124152
9332765538
10145008746
1174943243
1240691122
13240720bc
1415389a78
15cae584b
hex8a4a86a

145008746 has 8 divisors (see below), whose sum is σ = 219101220. Its totient is φ = 71975008.

The previous prime is 145008739. The next prime is 145008749. The reversal of 145008746 is 647800541.

It can be written as a sum of positive squares in 2 ways, for example, as 141729025 + 3279721 = 11905^2 + 1811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145008749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264341 + ... + 264888.

Almost surely, 2145008746 is an apocalyptic number.

145008746 is a deficient number, since it is larger than the sum of its proper divisors (74092474).

145008746 is a wasteful number, since it uses less digits than its factorization.

145008746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529368.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 145008746 is about 12041.9577311997. The cubic root of 145008746 is about 525.3693497679.

The spelling of 145008746 in words is "one hundred forty-five million, eight thousand, seven hundred forty-six".

Divisors: 1 2 137 274 529229 1058458 72504373 145008746