Search a number
-
+
92139169 = 101912269
BaseRepresentation
bin1010111110111…
…10111010100001
320102101011011211
411133132322201
5142041423134
613050510121
72166112213
oct537367241
9212334154
1092139169
1148012581
1226a35341
1316120825
14c3465b3
158150764
hex57deea1

92139169 has 4 divisors (see below), whose sum is σ = 93051540. Its totient is φ = 91226800.

The previous prime is 92139163. The next prime is 92139181. The reversal of 92139169 is 96193129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96193129 = 598716067.

It can be written as a sum of positive squares in 2 ways, for example, as 81216144 + 10923025 = 9012^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 92139169 - 211 = 92137121 is a prime.

It is a super-2 number, since 2×921391692 = 16979252928021122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92139163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456034 + ... + 456235.

It is an arithmetic number, because the mean of its divisors is an integer number (23262885).

Almost surely, 292139169 is an apocalyptic number.

It is an amenable number.

92139169 is a deficient number, since it is larger than the sum of its proper divisors (912371).

92139169 is a wasteful number, since it uses less digits than its factorization.

92139169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912370.

The product of its digits is 26244, while the sum is 40.

The square root of 92139169 is about 9598.9149907685. The cubic root of 92139169 is about 451.6632587958.

The spelling of 92139169 in words is "ninety-two million, one hundred thirty-nine thousand, one hundred sixty-nine".

Divisors: 1 101 912269 92139169