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145300099 = 720757157
BaseRepresentation
bin10001010100100…
…01101010000011
3101010102000021011
420222101222003
5244144100344
622230141351
73413013310
oct1052215203
9333360234
10145300099
117502212a
12407b1857
13241448b9
1415423d07
15cb51d34
hex8a91a83

145300099 has 4 divisors (see below), whose sum is σ = 166057264. Its totient is φ = 124542936.

The previous prime is 145300097. The next prime is 145300123. The reversal of 145300099 is 990003541.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 145300099 - 21 = 145300097 is a prime.

It is a super-2 number, since 2×1453000992 = 42224237538819602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145300099.

It is not an unprimeable number, because it can be changed into a prime (145300097) 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, 10378572 + ... + 10378585.

It is an arithmetic number, because the mean of its divisors is an integer number (41514316).

Almost surely, 2145300099 is an apocalyptic number.

145300099 is a deficient number, since it is larger than the sum of its proper divisors (20757165).

145300099 is an equidigital number, since it uses as much as digits as its factorization.

145300099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20757164.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 145300099 is about 12054.0490707480. The cubic root of 145300099 is about 525.7209734675.

The spelling of 145300099 in words is "one hundred forty-five million, three hundred thousand, ninety-nine".

Divisors: 1 7 20757157 145300099