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145051023 = 31316722271
BaseRepresentation
bin10001010010101…
…00110110001111
3101002221100121010
420221110312033
5244113113043
622220540303
73410625165
oct1051246617
9332840533
10145051023
1174971a87
12406b1693
1324088410
141539b235
15cb03133
hex8a54d8f

145051023 has 16 divisors (see below), whose sum is σ = 209534976. Its totient is φ = 88723680.

The previous prime is 145051013. The next prime is 145051033. The reversal of 145051023 is 320150541.

145051023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145051013) and next prime (145051033).

It is not a de Polignac number, because 145051023 - 24 = 145051007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145051013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4623 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (13095936).

Almost surely, 2145051023 is an apocalyptic number.

145051023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145051023 is a deficient number, since it is larger than the sum of its proper divisors (64483953).

145051023 is a wasteful number, since it uses less digits than its factorization.

145051023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22454.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 145051023 is about 12043.7130072084. The cubic root of 145051023 is about 525.4204015893.

The spelling of 145051023 in words is "one hundred forty-five million, fifty-one thousand, twenty-three".

Divisors: 1 3 13 39 167 501 2171 6513 22271 66813 289523 868569 3719257 11157771 48350341 145051023