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54161091129 = 3171061982179
BaseRepresentation
bin110010011100010000…
…001010101000111001
312011210120122111120010
4302130100022220321
51341410214404004
640514204052133
73625106451525
oct623420125071
9164716574503
1054161091129
1120a73584442
12a5b6534049
135151b74722
14289b218d85
15161ed3aa89
hexc9c40aa39

54161091129 has 8 divisors (see below), whose sum is σ = 76462716960. Its totient is φ = 33983429696.

The previous prime is 54161091121. The next prime is 54161091139. The reversal of 54161091129 is 92119016145.

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 54161091129 - 23 = 54161091121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54161091121) 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, 530991039 + ... + 530991140.

It is an arithmetic number, because the mean of its divisors is an integer number (9557839620).

Almost surely, 254161091129 is an apocalyptic number.

It is an amenable number.

54161091129 is a deficient number, since it is larger than the sum of its proper divisors (22301625831).

54161091129 is a wasteful number, since it uses less digits than its factorization.

54161091129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061982199.

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 54161091129 in words is "fifty-four billion, one hundred sixty-one million, ninety-one thousand, one hundred twenty-nine".

Divisors: 1 3 17 51 1061982179 3185946537 18053697043 54161091129