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54742171894 = 2611987225821
BaseRepresentation
bin110010111110111000…
…110100000011110110
312020022002001110111221
4302332320310003312
51344102444000034
641052002420554
73645363532534
oct627670640366
9166262043457
1054742171894
112124158aa83
12a73906175a
135215377ab7
142914479154
151655d6cbb4
hexcbee340f6

54742171894 has 16 divisors (see below), whose sum is σ = 83501749296. Its totient is φ = 26908711200.

The previous prime is 54742171877. The next prime is 54742171901. The reversal of 54742171894 is 49817124745.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129504 + ... + 355324.

It is an arithmetic number, because the mean of its divisors is an integer number (5218859331).

Almost surely, 254742171894 is an apocalyptic number.

54742171894 is a deficient number, since it is larger than the sum of its proper divisors (28759577402).

54742171894 is a wasteful number, since it uses less digits than its factorization.

54742171894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227871.

The product of its digits is 2257920, while the sum is 52.

The spelling of 54742171894 in words is "fifty-four billion, seven hundred forty-two million, one hundred seventy-one thousand, eight hundred ninety-four".

Divisors: 1 2 61 122 1987 3974 121207 225821 242414 451642 13775081 27550162 448706327 897412654 27371085947 54742171894