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142394053 = 8316710273
BaseRepresentation
bin10000111110011…
…00001011000101
3100220221100220211
420133030023011
5242423102203
622043555421
73346221004
oct1037141305
9326840824
10142394053
117341783a
123b82bb71
1323667c49
1414ca8c3b
15c77ac6d
hex87cc2c5

142394053 has 8 divisors (see below), whose sum is σ = 144986688. Its totient is φ = 139822464.

The previous prime is 142394033. The next prime is 142394059. The reversal of 142394053 is 350493241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142394053 - 29 = 142393541 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 (142394059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8725 + ... + 18997.

It is an arithmetic number, because the mean of its divisors is an integer number (18123336).

Almost surely, 2142394053 is an apocalyptic number.

It is an amenable number.

142394053 is a deficient number, since it is larger than the sum of its proper divisors (2592635).

142394053 is a wasteful number, since it uses less digits than its factorization.

142394053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 142394053 is about 11932.8979296732. The cubic root of 142394053 is about 522.1924846621.

The spelling of 142394053 in words is "one hundred forty-two million, three hundred ninety-four thousand, fifty-three".

Divisors: 1 83 167 10273 13861 852659 1715591 142394053