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138055413 = 3431070197
BaseRepresentation
bin10000011101010…
…00111011110101
3100121202221102110
420032220323311
5240320233123
621411001233
73264310626
oct1016507365
9317687373
10138055413
1170a24091
123a299219
13227a91c2
1414499a4d
15c1c0493
hex83a8ef5

138055413 has 8 divisors (see below), whose sum is σ = 188354848. Its totient is φ = 89896464.

The previous prime is 138055391. The next prime is 138055417. The reversal of 138055413 is 314550831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138055413 - 28 = 138055157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138055417) 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, 534970 + ... + 535227.

It is an arithmetic number, because the mean of its divisors is an integer number (23544356).

Almost surely, 2138055413 is an apocalyptic number.

It is an amenable number.

138055413 is a deficient number, since it is larger than the sum of its proper divisors (50299435).

138055413 is a wasteful number, since it uses less digits than its factorization.

138055413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070243.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 138055413 is about 11749.6984216617. The cubic root of 138055413 is about 516.8340838423.

The spelling of 138055413 in words is "one hundred thirty-eight million, fifty-five thousand, four hundred thirteen".

Divisors: 1 3 43 129 1070197 3210591 46018471 138055413