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145000810 = 2514500081
BaseRepresentation
bin10001010010010…
…00100101101010
3101002211210201101
420221020211222
5244110011220
622215512014
73410325613
oct1051104552
9332753641
10145000810
1174938289
124068860a
132406b5c6
1415386c0a
15cae330a
hex8a4896a

145000810 has 8 divisors (see below), whose sum is σ = 261001476. Its totient is φ = 58000320.

The previous prime is 145000771. The next prime is 145000813. The reversal of 145000810 is 18000541.

It can be written as a sum of positive squares in 2 ways, for example, as 144985681 + 15129 = 12041^2 + 123^2 .

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

It is a super-2 number, since 2×1450008102 = 42050469801312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145000813) 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, 7250031 + ... + 7250050.

Almost surely, 2145000810 is an apocalyptic number.

145000810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145000810 is a deficient number, since it is larger than the sum of its proper divisors (116000666).

145000810 is a wasteful number, since it uses less digits than its factorization.

145000810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14500088.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 145000810 is about 12041.6282121647. The cubic root of 145000810 is about 525.3597655018.

The spelling of 145000810 in words is "one hundred forty-five million, eight hundred ten", and thus it is an aban number.

Divisors: 1 2 5 10 14500081 29000162 72500405 145000810