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54931000000 = 2656163337
BaseRepresentation
bin110011001010001001…
…001000101011000000
312020210020100220222111
4303022021020223000
51344444314000000
641122425545104
73653145540022
oct631211105300
9166706326874
1054931000000
1121329132368
12a790345194
13524551ccc6
142931590012
15166771bcba
hexcca248ac0

54931000000 has 196 divisors, whose sum is σ = 137495583784. Its totient is φ = 21772800000.

The previous prime is 54930999899. The next prime is 54931000037. The reversal of 54931000000 is 13945.

It is a super-2 number, since 2×549310000002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 162999832 + ... + 163000168.

Almost surely, 254931000000 is an apocalyptic number.

54931000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54931000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68747791892).

54931000000 is an abundant number, since it is smaller than the sum of its proper divisors (82564583784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54931000000 is an frugal number, since it uses more digits than its factorization.

54931000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 54931000000 its reverse (13945), we get a palindrome (54931013945).

The spelling of 54931000000 in words is "fifty-four billion, nine hundred thirty-one million", and thus it is an aban number.