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145254115 = 561476243
BaseRepresentation
bin10001010100001…
…10011011100011
3101010022200012001
420222012123203
5244141112430
622225144431
73412432246
oct1052063343
9333280161
10145254115
1174aa0626
124078b117
13241299a6
141541125d
15cb433ca
hex8a866e3

145254115 has 8 divisors (see below), whose sum is σ = 177162768. Its totient is φ = 114298080.

The previous prime is 145254101. The next prime is 145254133. The reversal of 145254115 is 511452541.

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

It is not a de Polignac number, because 145254115 - 211 = 145252067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 237817 + ... + 238426.

It is an arithmetic number, because the mean of its divisors is an integer number (22145346).

Almost surely, 2145254115 is an apocalyptic number.

145254115 is a deficient number, since it is larger than the sum of its proper divisors (31908653).

145254115 is an equidigital number, since it uses as much as digits as its factorization.

145254115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476309.

The product of its digits is 4000, while the sum is 28.

The square root of 145254115 is about 12052.1415109515. The cubic root of 145254115 is about 525.6655082519.

The spelling of 145254115 in words is "one hundred forty-five million, two hundred fifty-four thousand, one hundred fifteen".

Divisors: 1 5 61 305 476243 2381215 29050823 145254115