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2538486931 = 23318734631
BaseRepresentation
bin1001011101001110…
…0011110010010011
320112220121111102111
42113103203302103
520144323040211
61055520330151
7116622532351
oct22723436223
96486544374
102538486931
111092a00892
125aa173957
13315bb6396
141a11cc7d1
15eccce421
hex974e3c93

2538486931 has 8 divisors (see below), whose sum is σ = 2649763584. Its totient is φ = 2427285960.

The previous prime is 2538486913. The next prime is 2538486943. The reversal of 2538486931 is 1396848352.

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

It is a cyclic number.

It is not a de Polignac number, because 2538486931 - 27 = 2538486803 is a prime.

It is a super-2 number, since 2×25384869312 = 12887831797715597522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2538481931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55986 + ... + 90616.

It is an arithmetic number, because the mean of its divisors is an integer number (331220448).

Almost surely, 22538486931 is an apocalyptic number.

2538486931 is a deficient number, since it is larger than the sum of its proper divisors (111276653).

2538486931 is a wasteful number, since it uses less digits than its factorization.

2538486931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37841.

The product of its digits is 1244160, while the sum is 49.

The square root of 2538486931 is about 50383.3993593128. The cubic root of 2538486931 is about 1364.1380114150.

The spelling of 2538486931 in words is "two billion, five hundred thirty-eight million, four hundred eighty-six thousand, nine hundred thirty-one".

Divisors: 1 23 3187 34631 73301 796513 110368997 2538486931