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138050455 = 5176772399
BaseRepresentation
bin10000011101001…
…11101110010111
3100121202200121211
420032213232113
5240320103310
621410522251
73264260314
oct1016475627
9317680554
10138050455
1170a20394
123a296387
13227a6b7a
1414497d0b
15c1bdc8a
hex83a7b97

138050455 has 16 divisors (see below), whose sum is σ = 175737600. Its totient is φ = 103747072.

The previous prime is 138050453. The next prime is 138050459. The reversal of 138050455 is 554050831.

It is a cyclic number.

It is not a de Polignac number, because 138050455 - 21 = 138050453 is a prime.

It is a super-3 number, since 3×1380504553 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138050453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56346 + ... + 58744.

It is an arithmetic number, because the mean of its divisors is an integer number (10983600).

Almost surely, 2138050455 is an apocalyptic number.

138050455 is a deficient number, since it is larger than the sum of its proper divisors (37687145).

138050455 is a wasteful number, since it uses less digits than its factorization.

138050455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 138050455 is about 11749.4874356288. The cubic root of 138050455 is about 516.8278967275.

The spelling of 138050455 in words is "one hundred thirty-eight million, fifty thousand, four hundred fifty-five".

Divisors: 1 5 17 85 677 2399 3385 11509 11995 40783 57545 203915 1624123 8120615 27610091 138050455