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142035554 = 271017777
BaseRepresentation
bin10000111011101…
…00101001100010
3100220021011011002
420131310221202
5242330114204
622032152002
73343165553
oct1035645142
9326234132
10142035554
11731a2461
123b698602
1323570a0b
1414c1432a
15c70991e
hex8774a62

142035554 has 4 divisors (see below), whose sum is σ = 213053334. Its totient is φ = 71017776.

The previous prime is 142035547. The next prime is 142035577. The reversal of 142035554 is 455530241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455530241 = 1692126921.

It can be written as a sum of positive squares in only one way, i.e., 121992025 + 20043529 = 11045^2 + 4477^2 .

It is an unprimeable number.

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, 35508887 + ... + 35508890.

Almost surely, 2142035554 is an apocalyptic number.

142035554 is a deficient number, since it is larger than the sum of its proper divisors (71017780).

142035554 is an equidigital number, since it uses as much as digits as its factorization.

142035554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71017779.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 142035554 is about 11917.8670071452. The cubic root of 142035554 is about 521.7538829885.

Adding to 142035554 its reverse (455530241), we get a palindrome (597565795).

The spelling of 142035554 in words is "one hundred forty-two million, thirty-five thousand, five hundred fifty-four".

Divisors: 1 2 71017777 142035554