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183838042 = 291919021
BaseRepresentation
bin10101111010100…
…10010101011010
3110210220221101101
422331102111122
5334030304132
630124142014
74361411653
oct1275222532
9423827341
10183838042
1194854273
125169790a
132c118b0b
141a5b652a
15112157e7
hexaf5255a

183838042 has 4 divisors (see below), whose sum is σ = 275757066. Its totient is φ = 91919020.

The previous prime is 183838037. The next prime is 183838043. The reversal of 183838042 is 240838381.

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

It can be written as a sum of positive squares in only one way, i.e., 128618281 + 55219761 = 11341^2 + 7431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 183837992 and 183838010.

It is not an unprimeable number, because it can be changed into a prime (183838043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45959509 + ... + 45959512.

Almost surely, 2183838042 is an apocalyptic number.

183838042 is a deficient number, since it is larger than the sum of its proper divisors (91919024).

183838042 is an equidigital number, since it uses as much as digits as its factorization.

183838042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91919023.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 183838042 is about 13558.6888009129. The cubic root of 183838042 is about 568.6064676328.

The spelling of 183838042 in words is "one hundred eighty-three million, eight hundred thirty-eight thousand, forty-two".

Divisors: 1 2 91919021 183838042