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145498845 = 359699923
BaseRepresentation
bin10001010110000…
…10001011011101
3101010210002220010
420223002023131
5244221430340
622234313433
73414501612
oct1053021335
9333702803
10145498845
1175148488
1240888879
13241b41bb
1415476509
15cb90b80
hex8ac22dd

145498845 has 8 divisors (see below), whose sum is σ = 232798176. Its totient is φ = 77599376.

The previous prime is 145498823. The next prime is 145498849. The reversal of 145498845 is 548894541.

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

It is a cyclic number.

It is not a de Polignac number, because 145498845 - 26 = 145498781 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145498794 and 145498803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145498849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4849947 + ... + 4849976.

It is an arithmetic number, because the mean of its divisors is an integer number (29099772).

Almost surely, 2145498845 is an apocalyptic number.

145498845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145498845 is a deficient number, since it is larger than the sum of its proper divisors (87299331).

145498845 is an equidigital number, since it uses as much as digits as its factorization.

145498845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699931.

The product of its digits is 921600, while the sum is 48.

The square root of 145498845 is about 12062.2902054295. The cubic root of 145498845 is about 525.9605634339.

The spelling of 145498845 in words is "one hundred forty-five million, four hundred ninety-eight thousand, eight hundred forty-five".

Divisors: 1 3 5 15 9699923 29099769 48499615 145498845