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142368403 = 577246739
BaseRepresentation
bin10000111110001…
…01111010010011
3100220220001201211
420133011322103
5242421242103
622043240551
73346053142
oct1037057223
9326801654
10142368403
11733aa541
123b819157
1323659378
1414c9d759
15c77336d
hex87c5e93

142368403 has 4 divisors (see below), whose sum is σ = 142615720. Its totient is φ = 142121088.

The previous prime is 142368379. The next prime is 142368409. The reversal of 142368403 is 304863241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142368403 - 25 = 142368371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142368409) 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, 122793 + ... + 123946.

It is an arithmetic number, because the mean of its divisors is an integer number (35653930).

Almost surely, 2142368403 is an apocalyptic number.

142368403 is a deficient number, since it is larger than the sum of its proper divisors (247317).

142368403 is an equidigital number, since it uses as much as digits as its factorization.

142368403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247316.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 142368403 is about 11931.8231213843. The cubic root of 142368403 is about 522.1611279182.

The spelling of 142368403 in words is "one hundred forty-two million, three hundred sixty-eight thousand, four hundred three".

Divisors: 1 577 246739 142368403