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146047539 = 31123193997
BaseRepresentation
bin10001011010010…
…00001000110011
3101011210222120010
420231020020303
5244342010124
622254150003
73422245401
oct1055101063
9334728503
10146047539
1175492750
1240ab2303
1324346b81
141557a471
15cc4d529
hex8b48233

146047539 has 32 divisors (see below), whose sum is σ = 223041024. Its totient is φ = 84142080.

The previous prime is 146047529. The next prime is 146047553. The reversal of 146047539 is 935740641.

It is not a de Polignac number, because 146047539 - 25 = 146047507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146047497 and 146047506.

It is not an unprimeable number, because it can be changed into a prime (146047519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145989 + ... + 146985.

It is an arithmetic number, because the mean of its divisors is an integer number (6970032).

Almost surely, 2146047539 is an apocalyptic number.

146047539 is a deficient number, since it is larger than the sum of its proper divisors (76993485).

146047539 is a wasteful number, since it uses less digits than its factorization.

146047539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 146047539 is about 12085.0129913046. The cubic root of 146047539 is about 526.6208880166.

The spelling of 146047539 in words is "one hundred forty-six million, forty-seven thousand, five hundred thirty-nine".

Divisors: 1 3 11 23 33 69 193 253 579 759 997 2123 2991 4439 6369 10967 13317 22931 32901 48829 68793 146487 192421 252241 577263 756723 2116631 4425683 6349893 13277049 48682513 146047539