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145108490 = 2514510849
BaseRepresentation
bin10001010011000…
…10111000001010
3101010001021102112
420221202320022
5244121432430
622222102322
73411254552
oct1051427012
9333037375
10145108490
1174a0117a
124071a9a2
13240a8617
14153b4162
15cb15195
hex8a62e0a

145108490 has 8 divisors (see below), whose sum is σ = 261195300. Its totient is φ = 58043392.

The previous prime is 145108463. The next prime is 145108501. The reversal of 145108490 is 94801541.

It can be written as a sum of positive squares in 2 ways, for example, as 143304841 + 1803649 = 11971^2 + 1343^2 .

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

It is a Curzon number.

It is an unprimeable number.

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, 7255415 + ... + 7255434.

Almost surely, 2145108490 is an apocalyptic number.

145108490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145108490 is a deficient number, since it is larger than the sum of its proper divisors (116086810).

145108490 is a wasteful number, since it uses less digits than its factorization.

145108490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14510856.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 145108490 is about 12046.0985385311. The cubic root of 145108490 is about 525.4897802740.

The spelling of 145108490 in words is "one hundred forty-five million, one hundred eight thousand, four hundred ninety".

Divisors: 1 2 5 10 14510849 29021698 72554245 145108490