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142055843 = 2312374993
BaseRepresentation
bin10000111011110…
…01100110100011
3100220022011222112
420131321212203
5242331241333
622032425535
73343311656
oct1035714643
9326264875
10142055843
1173206726
123b6a82ab
132357a017
1414c1b89d
15c710948
hex87799a3

142055843 has 8 divisors (see below), whose sum is σ = 148381728. Its totient is φ = 135742464.

The previous prime is 142055831. The next prime is 142055863. The reversal of 142055843 is 348550241.

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

It is a cyclic number.

It is not a de Polignac number, because 142055843 - 26 = 142055779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142055813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25955 + ... + 30947.

It is an arithmetic number, because the mean of its divisors is an integer number (18547716).

Almost surely, 2142055843 is an apocalyptic number.

142055843 is a deficient number, since it is larger than the sum of its proper divisors (6325885).

142055843 is a wasteful number, since it uses less digits than its factorization.

142055843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 142055843 is about 11918.7181777236. The cubic root of 142055843 is about 521.7787250326.

The spelling of 142055843 in words is "one hundred forty-two million, fifty-five thousand, eight hundred forty-three".

Divisors: 1 23 1237 4993 28451 114839 6176341 142055843