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6381138053 = 312835091429
BaseRepresentation
bin1011111000101100…
…00111000010000101
3121110201020101210102
411330112013002011
5101032032404203
62533105533445
7314062531013
oct57426070205
917421211712
106381138053
112784a93514
1212a1044285
137a9034c44
144476a38b3
15275322888
hex17c587085

6381138053 has 16 divisors (see below), whose sum is σ = 6627878400. Its totient is φ = 6137087040.

The previous prime is 6381138019. The next prime is 6381138061. The reversal of 6381138053 is 3508311836.

It is a cyclic number.

It is not a de Polignac number, because 6381138053 - 210 = 6381137029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6381137998 and 6381138016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6381138083) 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, 4464743 + ... + 4466171.

It is an arithmetic number, because the mean of its divisors is an integer number (414242400).

Almost surely, 26381138053 is an apocalyptic number.

It is an amenable number.

6381138053 is a deficient number, since it is larger than the sum of its proper divisors (246740347).

6381138053 is a wasteful number, since it uses less digits than its factorization.

6381138053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6381138053 is about 79882.0258443663. The cubic root of 6381138053 is about 1854.8097927867.

Adding to 6381138053 its reverse (3508311836), we get a palindrome (9889449889).

The spelling of 6381138053 in words is "six billion, three hundred eighty-one million, one hundred thirty-eight thousand, fifty-three".

Divisors: 1 31 283 509 1429 8773 15779 44299 144047 404407 727361 4465457 12536617 22548191 205843163 6381138053