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146105623 = 311469793
BaseRepresentation
bin10001011010101…
…10010100010111
3101011220221020101
420231112110113
5244400334443
622255314531
73422606626
oct1055262427
9334827211
10146105623
1175522354
1240b1ba47
1324367441
14155936bd
15cc6084d
hex8b56517

146105623 has 4 divisors (see below), whose sum is σ = 146575728. Its totient is φ = 145635520.

The previous prime is 146105621. The next prime is 146105639. The reversal of 146105623 is 326501641.

146105623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326501641 = 3110532311.

It is a cyclic number.

It is not a de Polignac number, because 146105623 - 21 = 146105621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146105591 and 146105600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146105621) 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, 234586 + ... + 235207.

It is an arithmetic number, because the mean of its divisors is an integer number (36643932).

Almost surely, 2146105623 is an apocalyptic number.

146105623 is a deficient number, since it is larger than the sum of its proper divisors (470105).

146105623 is an equidigital number, since it uses as much as digits as its factorization.

146105623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470104.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 146105623 is about 12087.4158942265. The cubic root of 146105623 is about 526.6906922135.

The spelling of 146105623 in words is "one hundred forty-six million, one hundred five thousand, six hundred twenty-three".

Divisors: 1 311 469793 146105623