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142046458 = 2174397159
BaseRepresentation
bin10000111011101…
…11010011111010
3100220021201002221
420131313103322
5242330441313
622032314254
73343242421
oct1035672372
9326251087
10142046458
11731aa674
123b6a298a
1323575978
1414c182b8
15c70cc8d
hex87774fa

142046458 has 16 divisors (see below), whose sum is σ = 230852160. Its totient is φ = 65290176.

The previous prime is 142046423. The next prime is 142046467. The reversal of 142046458 is 854640241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47118 + ... + 50041.

It is an arithmetic number, because the mean of its divisors is an integer number (14428260).

Almost surely, 2142046458 is an apocalyptic number.

142046458 is a deficient number, since it is larger than the sum of its proper divisors (88805702).

142046458 is a wasteful number, since it uses less digits than its factorization.

142046458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97221.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 142046458 is about 11918.3244627758. The cubic root of 142046458 is about 521.7672342436.

Adding to 142046458 its reverse (854640241), we get a palindrome (996686699).

The spelling of 142046458 in words is "one hundred forty-two million, forty-six thousand, four hundred fifty-eight".

Divisors: 1 2 17 34 43 86 731 1462 97159 194318 1651703 3303406 4177837 8355674 71023229 142046458