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54138989374 = 280783335089
BaseRepresentation
bin110010011010111011…
…110110101100111110
312011202001001121122121
4302122323312230332
51341334040124444
640512054233154
73624420550111
oct623273665476
9164661047577
1054138989374
1120a62059028
12a5ab0557ba
13514a406772
142898304578
15161ce22084
hexc9aef6b3e

54138989374 has 8 divisors (see below), whose sum is σ = 81209731680. Its totient is φ = 27069078816.

The previous prime is 54138989371. The next prime is 54138989381. The reversal of 54138989374 is 47398983145.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54138989371) by changing a digit.

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, 5979 + ... + 329110.

It is an arithmetic number, because the mean of its divisors is an integer number (10151216460).

Almost surely, 254138989374 is an apocalyptic number.

54138989374 is a deficient number, since it is larger than the sum of its proper divisors (27070742306).

54138989374 is a wasteful number, since it uses less digits than its factorization.

54138989374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415874.

The product of its digits is 26127360, while the sum is 61.

The spelling of 54138989374 in words is "fifty-four billion, one hundred thirty-eight million, nine hundred eighty-nine thousand, three hundred seventy-four".

Divisors: 1 2 80783 161566 335089 670178 27069494687 54138989374