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54104943989 = 1914531959827
BaseRepresentation
bin110010011000111001…
…111110110101110101
312011122122222221011102
4302120321332311311
51341301331201424
640504440415445
73623525302325
oct623071766565
9164578887142
1054104943989
1120a44915248
12a59b777585
135143346375
1428939a1285
151619e497ae
hexc98e7ed75

54104943989 has 8 divisors (see below), whose sum is σ = 56991798240. Its totient is φ = 51222012336.

The previous prime is 54104943961. The next prime is 54104944013. The reversal of 54104943989 is 98934940145.

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 54104943989 - 228 = 53836508533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54104943929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952307 + ... + 1007520.

It is an arithmetic number, because the mean of its divisors is an integer number (7123974780).

Almost surely, 254104943989 is an apocalyptic number.

It is an amenable number.

54104943989 is a deficient number, since it is larger than the sum of its proper divisors (2886854251).

54104943989 is a wasteful number, since it uses less digits than its factorization.

54104943989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961299.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 54104943989 in words is "fifty-four billion, one hundred four million, nine hundred forty-three thousand, nine hundred eighty-nine".

Divisors: 1 19 1453 27607 1959827 37236713 2847628631 54104943989