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6139137854 = 25215891687
BaseRepresentation
bin1011011011110101…
…11100111100111110
3120211211212111221002
411231322330330332
5100033104402404
62453103010302
7305063545043
oct55572747476
916754774832
106139137854
112670424153
121233b99992
1376ab63865
144234ab1ca
1525de6dc1e
hex16debcf3e

6139137854 has 8 divisors (see below), whose sum is σ = 9226383408. Its totient is φ = 3063676720.

The previous prime is 6139137847. The next prime is 6139137863. The reversal of 6139137854 is 4587319316.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 6139137799 and 6139137808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944802 + ... + 2946885.

It is an arithmetic number, because the mean of its divisors is an integer number (1153297926).

Almost surely, 26139137854 is an apocalyptic number.

6139137854 is a deficient number, since it is larger than the sum of its proper divisors (3087245554).

6139137854 is a wasteful number, since it uses less digits than its factorization.

6139137854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5892210.

The product of its digits is 544320, while the sum is 47.

The square root of 6139137854 is about 78352.6505869457. The cubic root of 6139137854 is about 1831.0595210189.

The spelling of 6139137854 in words is "six billion, one hundred thirty-nine million, one hundred thirty-seven thousand, eight hundred fifty-four".

Divisors: 1 2 521 1042 5891687 11783374 3069568927 6139137854