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145123958 = 2731334387
BaseRepresentation
bin10001010011001…
…10101001110110
3101010002001122102
420221212221312
5244122431313
622222302102
73411350630
oct1051465166
9333061572
10145123958
1174a11861
1240727932
13240b2685
14153b9a50
15cb19a58
hex8a66a76

145123958 has 16 divisors (see below), whose sum is σ = 256809984. Its totient is φ = 60189480.

The previous prime is 145123889. The next prime is 145123961. The reversal of 145123958 is 859321541.

It is a happy number.

145123958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166760 + ... + 167627.

It is an arithmetic number, because the mean of its divisors is an integer number (16050624).

Almost surely, 2145123958 is an apocalyptic number.

145123958 is a deficient number, since it is larger than the sum of its proper divisors (111686026).

145123958 is a wasteful number, since it uses less digits than its factorization.

145123958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334427.

The product of its digits is 43200, while the sum is 38.

The square root of 145123958 is about 12046.7405550215. The cubic root of 145123958 is about 525.5084513321.

The spelling of 145123958 in words is "one hundred forty-five million, one hundred twenty-three thousand, nine hundred fifty-eight".

Divisors: 1 2 7 14 31 62 217 434 334387 668774 2340709 4681418 10365997 20731994 72561979 145123958