Search a number
-
+
109247841 = 3212138649
BaseRepresentation
bin1101000001011…
…11110101100001
321121120100212100
412200233311201
5210431412331
614501321013
72464406553
oct640576541
9247510770
10109247841
115673857a
1230706169
1319830bc1
141071b4d3
1598ceae6
hex682fd61

109247841 has 6 divisors (see below), whose sum is σ = 157802450. Its totient is φ = 72831888.

The previous prime is 109247839. The next prime is 109247849. The reversal of 109247841 is 148742901.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 34857216 = 8625^2 + 5904^2 .

It is not a de Polignac number, because 109247841 - 21 = 109247839 is a prime.

It is a super-2 number, since 2×1092478412 = 23870181526322562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109247796 and 109247805.

It is not an unprimeable number, because it can be changed into a prime (109247849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6069316 + ... + 6069333.

Almost surely, 2109247841 is an apocalyptic number.

It is an amenable number.

109247841 is a deficient number, since it is larger than the sum of its proper divisors (48554609).

109247841 is a wasteful number, since it uses less digits than its factorization.

109247841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12138655 (or 12138652 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 109247841 is about 10452.1692006970. The cubic root of 109247841 is about 478.0473932222.

The spelling of 109247841 in words is "one hundred nine million, two hundred forty-seven thousand, eight hundred forty-one".

Divisors: 1 3 9 12138649 36415947 109247841