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145163267 = 181802007
BaseRepresentation
bin10001010011100…
…00010000000011
3101010011001120022
420221300100003
5244130211032
622223204055
73411603344
oct1051602003
9333131508
10145163267
1174a39347
124074662b
13240c7532
14153ca0cb
15cb26512
hex8a70403

145163267 has 4 divisors (see below), whose sum is σ = 145965456. Its totient is φ = 144361080.

The previous prime is 145163261. The next prime is 145163279. The reversal of 145163267 is 762361541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 762361541 = 2926288329.

It is a cyclic number.

It is not a de Polignac number, because 145163267 - 224 = 128386051 is a prime.

It is a super-2 number, since 2×1451632672 = 42144748172226578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145163261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400823 + ... + 401184.

It is an arithmetic number, because the mean of its divisors is an integer number (36491364).

Almost surely, 2145163267 is an apocalyptic number.

145163267 is a deficient number, since it is larger than the sum of its proper divisors (802189).

145163267 is an equidigital number, since it uses as much as digits as its factorization.

145163267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802188.

The product of its digits is 30240, while the sum is 35.

The square root of 145163267 is about 12048.3719647096. The cubic root of 145163267 is about 525.5558943299. Note that the first 3 decimals are identical.

The spelling of 145163267 in words is "one hundred forty-five million, one hundred sixty-three thousand, two hundred sixty-seven".

Divisors: 1 181 802007 145163267