Search a number
-
+
136793247 = 345597749
BaseRepresentation
bin10000010011101…
…00110010011111
3100112101211001120
420021310302133
5240004340442
621323542023
73250503063
oct1011646237
9315354046
10136793247
1170241878
123998a913
1322456866
141424baa3
15c0214ec
hex8274c9f

136793247 has 4 divisors (see below), whose sum is σ = 182391000. Its totient is φ = 91195496.

The previous prime is 136793233. The next prime is 136793249. The reversal of 136793247 is 742397631.

136793247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742397631 = 3247465877.

It is a cyclic number.

It is not a de Polignac number, because 136793247 - 24 = 136793231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136793199 and 136793208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136793249) 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, 22798872 + ... + 22798877.

It is an arithmetic number, because the mean of its divisors is an integer number (45597750).

Almost surely, 2136793247 is an apocalyptic number.

136793247 is a deficient number, since it is larger than the sum of its proper divisors (45597753).

136793247 is an equidigital number, since it uses as much as digits as its factorization.

136793247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45597752.

The product of its digits is 190512, while the sum is 42.

The square root of 136793247 is about 11695.8645255492. The cubic root of 136793247 is about 515.2542145196.

The spelling of 136793247 in words is "one hundred thirty-six million, seven hundred ninety-three thousand, two hundred forty-seven".

Divisors: 1 3 45597749 136793247