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136331377 = 7213214021
BaseRepresentation
bin10000010000001…
…00000001110001
3100111112100111021
420020010001301
5234400101002
621310015441
73243540400
oct1010040161
9314470437
10136331377
116aa56866
12397a7581
1322324570
141416b637
15be7e737
hex8204071

136331377 has 12 divisors (see below), whose sum is σ = 170789556. Its totient is φ = 107866080.

The previous prime is 136331353. The next prime is 136331383. The reversal of 136331377 is 773133631.

It can be written as a sum of positive squares in 2 ways, for example, as 20575296 + 115756081 = 4536^2 + 10759^2 .

It is not a de Polignac number, because 136331377 - 27 = 136331249 is a prime.

It is a super-2 number, since 2×1363313772 = 37172488709432258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136331387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106374 + ... + 107647.

It is an arithmetic number, because the mean of its divisors is an integer number (14232463).

Almost surely, 2136331377 is an apocalyptic number.

It is an amenable number.

136331377 is a deficient number, since it is larger than the sum of its proper divisors (34458179).

136331377 is a wasteful number, since it uses less digits than its factorization.

136331377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214048 (or 214041 counting only the distinct ones).

The product of its digits is 23814, while the sum is 34.

The square root of 136331377 is about 11676.1028172931. The cubic root of 136331377 is about 514.6736575778.

The spelling of 136331377 in words is "one hundred thirty-six million, three hundred thirty-one thousand, three hundred seventy-seven".

Divisors: 1 7 13 49 91 637 214021 1498147 2782273 10487029 19475911 136331377