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131677108 = 2273450949
BaseRepresentation
bin1111101100100…
…11101110110100
3100011202220000221
413312103232310
5232202131413
621022144124
73156144163
oct766235664
9304686027
10131677108
1168367a62
1238122044
1321384c64
14136b93da
15b86068d
hex7d93bb4

131677108 has 12 divisors (see below), whose sum is σ = 233592100. Its totient is φ = 64936512.

The previous prime is 131677099. The next prime is 131677109. The reversal of 131677108 is 801776131.

It can be written as a sum of positive squares in 2 ways, for example, as 53319204 + 78357904 = 7302^2 + 8852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131677109) 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, 225183 + ... + 225766.

Almost surely, 2131677108 is an apocalyptic number.

It is an amenable number.

131677108 is a deficient number, since it is larger than the sum of its proper divisors (101914992).

131677108 is a wasteful number, since it uses less digits than its factorization.

131677108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451026 (or 451024 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 131677108 is about 11475.0646185544. The cubic root of 131677108 is about 508.7488336154.

The spelling of 131677108 in words is "one hundred thirty-one million, six hundred seventy-seven thousand, one hundred eight".

Divisors: 1 2 4 73 146 292 450949 901898 1803796 32919277 65838554 131677108