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142362865 = 537411372
BaseRepresentation
bin10000111110001…
…00100011110001
3100220212210010201
420133010203301
5242421102430
622043155201
73346031041
oct1037044361
9326783121
10142362865
11733a6367
123b815b01
13236569a8
1414c9b721
15c7718ca
hex87c48f1

142362865 has 24 divisors (see below), whose sum is σ = 181053432. Its totient is φ = 107320320.

The previous prime is 142362863. The next prime is 142362889. The reversal of 142362865 is 568263241.

It can be written as a sum of positive squares in 12 ways, for example, as 24770529 + 117592336 = 4977^2 + 10844^2 .

It is not a de Polignac number, because 142362865 - 21 = 142362863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142362863) 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 23 ways as a sum of consecutive naturals, for example, 1039077 + ... + 1039213.

It is an arithmetic number, because the mean of its divisors is an integer number (7543893).

Almost surely, 2142362865 is an apocalyptic number.

It is an amenable number.

142362865 is a deficient number, since it is larger than the sum of its proper divisors (38690567).

142362865 is an equidigital number, since it uses as much as digits as its factorization.

142362865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 220 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 142362865 is about 11931.5910506520. The cubic root of 142362865 is about 522.1543573011.

The spelling of 142362865 in words is "one hundred forty-two million, three hundred sixty-two thousand, eight hundred sixty-five".

Divisors: 1 5 37 41 137 185 205 685 1517 5069 5617 7585 18769 25345 28085 93845 207829 694453 769529 1039145 3472265 3847645 28472573 142362865