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54123432145 = 5103563918637
BaseRepresentation
bin110010011010000000…
…100000100011010001
312011200221210020010221
4302122000200203101
51341321044312040
640510340553041
73624141403546
oct623200404321
9164627706127
1054123432145
1120a542a2712
12a5a59b2781
13514711a5c3
142896214bcd
15161b89c74a
hexc9a0208d1

54123432145 has 16 divisors (see below), whose sum is σ = 65593831680. Its totient is φ = 42868465344.

The previous prime is 54123432079. The next prime is 54123432173.

54123432145 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 54123432145 - 217 = 54123301073 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54123432145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2894767 + ... + 2913403.

It is an arithmetic number, because the mean of its divisors is an integer number (4099614480).

Almost surely, 254123432145 is an apocalyptic number.

It is an amenable number.

54123432145 is a deficient number, since it is larger than the sum of its proper divisors (11470399535).

54123432145 is a wasteful number, since it uses less digits than its factorization.

54123432145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24384.

The product of its digits is 57600, while the sum is 34.

The spelling of 54123432145 in words is "fifty-four billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred forty-five".

Divisors: 1 5 103 515 5639 18637 28195 93185 580817 1919611 2904085 9598055 105094043 525470215 10824686429 54123432145