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145530230 = 2514553023
BaseRepresentation
bin10001010110010…
…01110101110110
3101010211200221112
420223021311312
5244223431410
622235115022
73414662246
oct1053116566
9333750845
10145530230
117516a01a
12408a2a72
13241c5581
1415483b26
15cb9a105
hex8ac9d76

145530230 has 8 divisors (see below), whose sum is σ = 261954432. Its totient is φ = 58212088.

The previous prime is 145530221. The next prime is 145530247. The reversal of 145530230 is 32035541.

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

It is a junction number, because it is equal to n+sod(n) for n = 145530196 and 145530205.

It is a congruent number.

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, 7276502 + ... + 7276521.

It is an arithmetic number, because the mean of its divisors is an integer number (32744304).

Almost surely, 2145530230 is an apocalyptic number.

145530230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145530230 is a deficient number, since it is larger than the sum of its proper divisors (116424202).

145530230 is a wasteful number, since it uses less digits than its factorization.

145530230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14553030.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 145530230 is about 12063.5910905501. The cubic root of 145530230 is about 525.9983783630.

Adding to 145530230 its reverse (32035541), we get a palindrome (177565771).

The spelling of 145530230 in words is "one hundred forty-five million, five hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 14553023 29106046 72765115 145530230