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138682103 = 73404321
BaseRepresentation
bin10000100010000…
…01111011110111
3100122221210002012
420101001323313
5241000311403
621432234435
73302531000
oct1021017367
9318853065
10138682103
1171311a0a
123a53ba1b
1322968521
14145c01a7
15c295ed8
hex8441ef7

138682103 has 8 divisors (see below), whose sum is σ = 161728800. Its totient is φ = 118870080.

The previous prime is 138682091. The next prime is 138682109. The reversal of 138682103 is 301286831.

It is a happy number.

138682103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138682103 - 216 = 138616567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138682103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138682109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201818 + ... + 202503.

It is an arithmetic number, because the mean of its divisors is an integer number (20216100).

Almost surely, 2138682103 is an apocalyptic number.

138682103 is a deficient number, since it is larger than the sum of its proper divisors (23046697).

138682103 is an frugal number, since it uses more digits than its factorization.

138682103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404342 (or 404328 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 138682103 is about 11776.3365695788. The cubic root of 138682103 is about 517.6149439339.

The spelling of 138682103 in words is "one hundred thirty-eight million, six hundred eighty-two thousand, one hundred three".

Divisors: 1 7 49 343 404321 2830247 19811729 138682103