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142115026 = 271057513
BaseRepresentation
bin10000111100010…
…00000011010010
3100220102012011111
420132020003102
5242340140101
622034003534
73343646344
oct1036100322
9326365144
10142115026
1173247139
123b7165aa
132359ac41
1414c35294
15c723251
hex87880d2

142115026 has 4 divisors (see below), whose sum is σ = 213172542. Its totient is φ = 71057512.

The previous prime is 142115021. The next prime is 142115033. The reversal of 142115026 is 620511241.

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., 115541001 + 26574025 = 10749^2 + 5155^2 .

It is a super-2 number, since 2×1421150262 = 40393361229961352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142114988 and 142115006.

It is not an unprimeable number, because it can be changed into a prime (142115021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35528755 + ... + 35528758.

Almost surely, 2142115026 is an apocalyptic number.

142115026 is a deficient number, since it is larger than the sum of its proper divisors (71057516).

142115026 is an equidigital number, since it uses as much as digits as its factorization.

142115026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71057515.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 142115026 is about 11921.2006945609. The cubic root of 142115026 is about 521.8511757492.

Adding to 142115026 its reverse (620511241), we get a palindrome (762626267).

The spelling of 142115026 in words is "one hundred forty-two million, one hundred fifteen thousand, twenty-six".

Divisors: 1 2 71057513 142115026