Search a number
-
+
102788341 = 172355669
BaseRepresentation
bin1100010000001…
…10110011110101
321011102012002121
412020012303311
5202303211331
614111035541
72355454315
oct610066365
9234365077
10102788341
1153026447
122a50bbb1
13183aba06
14d919445
159055c11
hex6206cf5

102788341 has 6 divisors (see below), whose sum is σ = 109190690. Its totient is φ = 96741696.

The previous prime is 102788321. The next prime is 102788381. The reversal of 102788341 is 143887201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 66487716 + 36300625 = 8154^2 + 6025^2 .

It is not a de Polignac number, because 102788341 - 211 = 102786293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102788297 and 102788306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102788321) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 177546 + ... + 178123.

Almost surely, 2102788341 is an apocalyptic number.

It is an amenable number.

102788341 is a deficient number, since it is larger than the sum of its proper divisors (6402349).

102788341 is an equidigital number, since it uses as much as digits as its factorization.

102788341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355703 (or 355686 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 102788341 is about 10138.4585120224. The cubic root of 102788341 is about 468.4335066288.

The spelling of 102788341 in words is "one hundred two million, seven hundred eighty-eight thousand, three hundred forty-one".

Divisors: 1 17 289 355669 6046373 102788341