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136242101 = 139980159
BaseRepresentation
bin10000001111011…
…10001110110101
3100111100211000202
420013232032311
5234334221401
621304050245
73243016202
oct1007561665
9314324022
10136242101
116a9a5786
1239763985
13222c2a38
1414146ca9
15be6306b
hex81ee3b5

136242101 has 4 divisors (see below), whose sum is σ = 137222400. Its totient is φ = 135261804.

The previous prime is 136242089. The next prime is 136242109. The reversal of 136242101 is 101242631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136242101 - 214 = 136225717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136242109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489941 + ... + 490218.

It is an arithmetic number, because the mean of its divisors is an integer number (34305600).

Almost surely, 2136242101 is an apocalyptic number.

It is an amenable number.

136242101 is a deficient number, since it is larger than the sum of its proper divisors (980299).

136242101 is an equidigital number, since it uses as much as digits as its factorization.

136242101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980298.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 136242101 is about 11672.2791690398. The cubic root of 136242101 is about 514.5612891225.

Adding to 136242101 its reverse (101242631), we get a palindrome (237484732).

The spelling of 136242101 in words is "one hundred thirty-six million, two hundred forty-two thousand, one hundred one".

Divisors: 1 139 980159 136242101