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150142453 = 178831909
BaseRepresentation
bin10001111001011…
…11110111110101
3101110112000201121
420330233313311
5301414024303
622522023541
73502122046
oct1074576765
9343460647
10150142453
117782a27a
1242347bb1
132514b9b6
1415d248cd
15d2ab9bd
hex8f2fdf5

150142453 has 4 divisors (see below), whose sum is σ = 158974380. Its totient is φ = 141310528.

The previous prime is 150142441. The next prime is 150142463. The reversal of 150142453 is 354241051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354241051 = 2699131249.

It can be written as a sum of positive squares in 2 ways, for example, as 125955729 + 24186724 = 11223^2 + 4918^2 .

It is a de Polignac number, because none of the positive numbers 2k-150142453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150142463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415938 + ... + 4415971.

It is an arithmetic number, because the mean of its divisors is an integer number (39743595).

Almost surely, 2150142453 is an apocalyptic number.

It is an amenable number.

150142453 is a deficient number, since it is larger than the sum of its proper divisors (8831927).

150142453 is an equidigital number, since it uses as much as digits as its factorization.

150142453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831926.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 150142453 is about 12253.2629531892. The cubic root of 150142453 is about 531.4974301531.

The spelling of 150142453 in words is "one hundred fifty million, one hundred forty-two thousand, four hundred fifty-three".

Divisors: 1 17 8831909 150142453