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145092434 = 2257282281
BaseRepresentation
bin10001010010111…
…10111101010010
3101010000110101212
420221132331102
5244120424214
622221500122
73411160004
oct1051367522
9333013355
10145092434
11749a0103
1240711642
13240a1216
14153ac374
15cb1053e
hex8a5ef52

145092434 has 8 divisors (see below), whose sum is σ = 218486268. Its totient is φ = 72263680.

The previous prime is 145092403. The next prime is 145092443. The reversal of 145092434 is 434290541.

It can be written as a sum of positive squares in 2 ways, for example, as 109725625 + 35366809 = 10475^2 + 5947^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 145092434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140627 + ... + 141654.

Almost surely, 2145092434 is an apocalyptic number.

145092434 is a deficient number, since it is larger than the sum of its proper divisors (73393834).

145092434 is a wasteful number, since it uses less digits than its factorization.

145092434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282540.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 145092434 is about 12045.4320802535. The cubic root of 145092434 is about 525.4703980515.

The spelling of 145092434 in words is "one hundred forty-five million, ninety-two thousand, four hundred thirty-four".

Divisors: 1 2 257 514 282281 564562 72546217 145092434