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142150766 = 271075383
BaseRepresentation
bin10000111100100…
…00110001101110
3100220111000012012
420132100301232
5242342311031
622034441222
73344155502
oct1036206156
9326430165
10142150766
1173270a7a
123b733212
13235b12a4
1414c44302
15c72db2b
hex8790c6e

142150766 has 4 divisors (see below), whose sum is σ = 213226152. Its totient is φ = 71075382.

The previous prime is 142150759. The next prime is 142150769. The reversal of 142150766 is 667051241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 667051241 = 2027329083.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142150769) 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 as a sum of consecutive naturals, namely, 35537690 + ... + 35537693.

It is an arithmetic number, because the mean of its divisors is an integer number (53306538).

Almost surely, 2142150766 is an apocalyptic number.

142150766 is a deficient number, since it is larger than the sum of its proper divisors (71075386).

142150766 is an equidigital number, since it uses as much as digits as its factorization.

142150766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71075385.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 142150766 is about 11922.6996104070. The cubic root of 142150766 is about 521.8949182449.

The spelling of 142150766 in words is "one hundred forty-two million, one hundred fifty thousand, seven hundred sixty-six".

Divisors: 1 2 71075383 142150766